A major division of the nervous system that contains nerves which connect the central nervous system (CNS) with sensory organs, other organs, muscles, blood vessels and glands. PNS pars peripherica systema nervosum periphericum peripheral nervous system Any portion of the organ that covers that body and consists of a layer of epidermis and a layer of dermis. portion of skin region of skin skin skin region skin zone zone of skin An organ of sight that includes the camera-type eyeball and supporting structures such as the lacrimal apparatus, the conjunctiva, the eyelid. eye regio orbitalis vertebrate eye camera-type eye plus associated structures eyes orbital part of face orbital region camera-type eye An organ that is capable of transducing sensory stimulus to the nervous system. organ of sense organ system organ of sensory organ system organ of sensory system sense organ system organ sensory organ sensory organ system organ sensory system organ sensillum Sinnesorgan sensor sense organ Anatomical projection that protrudes from the skin. Examples: hair, nail, feather, claw, hoof, horn, wattle, spur, beak, antler, bristle and some scales. skin appendage epidermal appendage epidermal growth cutaneous appendage One of the epidermal growths that form the distinctive outer covering, or plumage, on birds. Feathers are formed in tiny follicles in the epidermis, or outer skin layer, that produce keratin proteins. feather Any hollow cylindrical anatomical structure containing a lumen through which substances are transported. anatomical tube duct tube The head is the anterior-most division of the body [GO]. head (volume) adult head cephalic area head An eye with one concave chamber. Note that 'simple' does not imply a reduced level of complexity or acuity. simple eye A tubular structure that contains, conveys body fluid, such as blood or lymph. vessel Organ component adjacent to an organ cavity and which consists of a maximal aggregate of organ component layers. wall wall of organ organ wall anatomical wall Material anatomical entity that is a single connected structure with inherent 3D shape generated by coordinated expression of the organism's own genome. biological structure connected biological structure anatomical structure Anatomical structure that performs a specific function or group of functions [WP]. anatomical unit body organ element organ A part of an organ that constitutes a distinct modular sub-unit. In some cases, the organ may also contain other sub-units of identical or similar types, in other cases this may be a distinct entity. organ region with fixed fiat boundary organ segment segment of organ organ subunit A multicellular structure that is a part of an organ. cardinal organ part regional part of organ organ part Any part or collection of parts of the central or peripheral nervous system. Parts may span both CNS and PNS. part of nervous system regional part of nervous system Anatomical cluster consisting of the skeletal elements and articular elements that are part of an individual subdivision of the organism. skeletal system subdivision skeletal system part subdivision of skeletal system The surface (external) layer of ectoderm which begins to proliferate shortly after separation from the neuroectoderm. surface (external) ectoderm surface ectoderm external ectoderm An anatomical structure that develops from the endoderm and the mesoderm. mixed endoderm/mesoderm-derived structure An anatomical structure that develops from the ectoderm, mesoderm and endoderm. mixed ectoderm/mesoderm/endoderm-derived structure A fasciculated bundle of neuron projections (GO:0043005), largely or completely lacking synapses. funiculus nerve fiber bundle neural fiber bundle neuron projection bundle A spatially aggregated collection of nerve cell bodies in the CNS, consisting of one or more subpopulations that share cell type, chemical phenotype, and connections, and including nearby cells that share the same cell type, chemical phenotype, and connections. (CUMBO). nucleus nervous system nucleus neuraxis nucleus neuronal nucleus nucleus of CNS nucleus of neuraxis neural nucleus anterior region of body Segment of the alimentary canal extending from the stomach to the anus and, in humans and other mammals, consists of two segments, the small intestine and the large intestine. bowel intestinal tract intestine Anatomical conduit that connects two adjacent body spaces (or a body space with the space surrounding the organism)[FMA,modified]. anatomical ostium ostium anatomical orifice hilum orifice Common chamber into which the intestines and excretory system opens. Arises during development in all vertebrates, but in many it becomes subdivided, lost or incorporated into other structures. cloacal chamber vent cloaca Endoderm-lined chamber that develops as pouch-like dilation of the caudal end of the hindgut and receives the allantois ventrally and two mesonephric ducts laterally; caudally it ends blindly at the cloacal membrane formed by the union of proctodeal (anal pit) ectoderm and cloacal endoderm, with no intervening mesoderm[MP]. cloaca embryonic cloaca The ventral part of the cloaca remaining after septation of the rectum, which further develops into part of the bladder, part of the prostatic part of the male urethra and the urethra and vestibule in females. urogenital sinus UGS fetal UGS sinus urogenitalis primitive urogenital sinus The proximal portion of the digestive tract, containing the oral cavity and bounded by the oral opening. In vertebrates, this extends to the pharynx and includes gums, lips, tongue and parts of the palate. Typically also includes the teeth, except where these occur elsewhere (e.g. pharyngeal jaws) or protrude from the mouth (tusks). regio oralis adult mouth cavital oralis cavitas oris cavum oris mouth cavity oral region oral vestibule rima oris stoma stomatodaeum trophic apparatus vestibule of mouth vestibulum oris mouth The orifice that connects the mouth to the exterior of the body. oral fissure oral orifice mouth oral part of face oral opening A bodily fluid consisting of the expulsed contents of the stomach disgorged through the mouth or nose that happens as a result of a vomit reflex. vomitus vomit Amniotic fluid is a bodily fluid consisting of watery liquid surrounding and cushioning a growing fetus within the amnion. It allows the fetus to move freely without the walls of the uterus being too tight against its body. Buoyancy is also provided. The composition of the fluid changes over the course of gestation. Initially, amniotic fluid is similar to maternal plasma, mainly water with electrolytes. As the fetus develops, proteins, carbohydrates, lipids, phospholipids originating from the lungs, fetal cells, and urea are deposited in the fluid. acqua amnii liquor amnii amniotic fluid A portion of organism substance that is the product of an excretion process that will be eliminated from the body. An excretion process is elimination by an organism of the waste products that arise as a result of metabolic activity. excreted substance portion of excreted substance waste substance excretion excreta Pleural effusion is a bodily fluid that is produced in exess and accumulates in the pleural cavity, the fluid-filled space that surrounds the lungs. Excessive amounts of such fluid can impair breathing by limiting the expansion of the lungs during inhalation. pleural effusion A bodily fluid secreted from the body via the mouth or nose. oronasal discharge oronasal secretion Pus is a bodily fluid consisting of a whitish-yellow or yellow substance produced during inflammatory responses of the body that can be found in regions of pyogenic bacterial infections. Pus is produced from the dead and living cells which travel into the intercellular spaces around the affected cells. purulent exudate pus A fluid that is composed of blood plasma and erythrocytes. portion of blood vertebrate blood whole blood blood Circulating fluid that is part of the hemolymphoid system. Blood, lymph, interstitial fluid or its analogs. blood or blood analog circulating fluid haemolymphatic fluid Organism at the blastula stage - an early stage of embryonic development in animals. It is produced by cleavage of a fertilized ovum and consists of a spherical layer of around 128 cells surrounding a central fluid-filled cavity called the blastocoel. The blastula follows the morula and precedes the gastrula in the developmental sequence. blastula embryo blastosphere blastula An embryo that is at the late embryonic stage; this stage covers late steps of the embryogenesis with a fully formed embryo still developing before birth or egg hatching. fetus embryo late growth stage embryo late stage late embryo The wall of the digestive tract. This encompasses all parts of the digestive tract with the exception of the lumen (cavity). digestive tract wall wall of digestive tract wall of gut wall of alimentary tract gut wall A lining of mostly endodermal origin, covered in epithelium, which is involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. It is at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and gland is termed mucus. The term mucous membrane refers to where they are found in the body and not every mucous membrane secretes mucus[WP]. mucosa of organ mucosa of organ part mucosal region mucous membrane organ mucosa region of mucosa tunica mucosa mucosa A set of midline structures surrounding the brainstem of the mammalian brain, originally described anatomically, e.g., hippocampal formation, amygdala, hypothalamus, cingulate cortex. Although the original designation was anatomical, the limbic system has come to be associated with the system in the brain subserving emotional functions. As such, it is very poorly defined and doesn't correspond closely to the anatomical meaning any longer. [BirnLex]. visceral brain limbic system The subdivision of the musculoskeletal system that consists of all the muscles of the body[VSAO, modified]. muscle system muscle system of body muscular system musculature system set of all muscles set of muscles of body vertebrate muscular system muskelsystem musculature of body A portion of organism substance that is produced by exocrine glands. secretion bodily secretion exocrine gland fluid/secretion secreted substance exocrine gland fluid exocrine gland fluid or secretion exocrine gland secretion external secretion secretion of exocrine gland Material anatomical entity in a gaseous, liquid, semisolid or solid state; produced by anatomical structures or derived from inhaled and ingested substances that have been modified by anatomical structures as they pass through the body. body fluid or substance body substance organism substance portion of body substance portion of organism substance organism substance Non-material anatomical entity of three dimensions, that is generated by morphogenetic or other physiologic processes; is surrounded by one or more anatomical structures; contains one or more organism substances or anatomical structures. lumen space lumen space anatomical spaces anatomical space Anatomical entity that has mass. material anatomical entity Anatomical entity that has no mass. immaterial physical anatomical entity immaterial anatomical entity Multicellular, connected anatomical structure that has multiple organs as parts and whose parts work together to achieve some shared function. system body system connected anatomical system organ system anatomical systems anatomical system Anatomical structure that is an individual member of a species and consists of more than one cell. organism multi-cellular organism Koerper body whole body whole organism multicellular organism Anatomical structure which is a subdivision of a whole organism, consisting of components of multiple anatomical systems, largely surrounded by a contiguous region of integument. anatomic region body part body region cardinal body part organism subdivision Anatomical structure that consists of cell parts and cell substances and together does not constitute a cell or a tissue. acellular anatomical structures acellular anatomical structure Anatomical group that has its parts adjacent to one another. anatomical cluster A multicellular anatomical structure that is associated with an embryo and derived from the zygote from which it develops, but which does not contribute to the embryo proper or to structures that are part of the same organism after embryogenesis. extra-embryonic structure extraembryonic structures extraembryonic tissue extraembryonic structure Multicellular anatomical structure that consists of many cells of one or a few types, arranged in an extracellular matrix such that their long-range organisation is at least partly a repetition of their short-range organisation. portion of tissue tissue portion simple tissue tissue Anatomical structure that has as its parts two or more portions of tissue of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona-fide boundaries from other distinct structural units of different types. multi-tissue structures multi-tissue structure Portion of tissue, that consists of one or more layers of epithelial cells connected to each other by cell junctions and which is underlain by a basal lamina. Examples: simple squamous epithelium, glandular cuboidal epithelium, transitional epithelium, myoepithelium[CARO]. epithelial tissue portion of epithelium epithelium Unilaminar epithelium that consists of a single layer of cuboidal cells. epithelium simplex cuboideum simple cuboidal epithelia simple cuboidal epithelium Unilaminar epithelium, which consists of a single layer of columnar cells. Examples: ciliated columnar epithelium, gastric epithelium, microvillus columnar epithelium.[FMA]. columnar epithelium columnar epithlium epithelium simplex columnare simple columnar epithelium simple columnar epithelia simple columnar epithelium Epithelium which consists of more than one layer of epithelial cells that may or may not be in contact with a basement membrane. Examples: keratinized stratified squamous epithelium, ciliated stratified columnar epithelium.[FMA]. stratified epithelium laminated epithelium multilaminar epithelium Epithelium that consists of epithelial cells not arranged in one ore more layers. heterogenous epithelium atypical epithelia atypical epithelium Compound organ that contains one or more macroscopic anatomical spaces. cavitated organ cavitated compound organs cavitated compound organ Epithelium which consists of a single layer of epithelial cells. Examples: endothelium, mesothelium, glandular squamous epithelium.[FMA]. simple epithelium unilaminar epithelia unilaminar epithelium A semifluid mass of partly digested food expelled by the stomach into the duodenum. chymus chyme Chyle is a bodily fluid consisting of a milky fluid consisting of lymph and emulsified fats; formed in the small intestine during digestion of ingested fats. chyle Mucus is a bodily fluid consisting of a slippery secretion of the lining of the mucous membranes in the body. It is a viscous colloid containing antiseptic enzymes (such as lysozyme) and immunoglobulins. Mucus is produced by goblet cells in the mucous membranes that cover the surfaces of the membranes. It is made up of mucins and inorganic salts suspended in water. mucus Interstitial fluid is a bodily fluid consisting of a solution which bathes and surrounds the cells of multicellular animals. It is the main component of the extracellular fluid, which also includes plasma and transcellular fluid. intercellular fluid tissue fluid interstitial fluid Subdivision of trunk that lies between the head and the abdomen. thorax anterior subdivision of trunk upper body upper trunk thoracic segment of trunk Anatomical entity that comprises the organism in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems. For example, for mammals, the process would begin with zygote formation and end with birth. For insects, the process would begin at zygote formation and end with larval hatching. For plant zygotic embryos, this would be from zygote formation to the end of seed dormancy. For plant vegetative embryos, this would be from the initial determination of the cell or group of cells to form an embryo until the point when the embryo becomes independent of the parent plant. embryonic organism developing organism developmental tissue embryo A layer of cells produced during the process of gastrulation during the early development of the animal embryo, which is distinct from other such layers of cells, as an early step of cell differentiation. The three types of germ layers are the endoderm, ectoderm, and mesoderm. embryonic tissue germinal layer primary germ layer embryonic germ layer embryonic germ layers germ layer Primary germ layer that is the outer of the embryo's three germ layers and gives rise to epidermis and neural tissue. embryonic ectoderm ectoderm Primary germ layer that lies remote from the surface of the embryo and gives rise to internal tissues such as gut. entoderm endoderm The middle germ layer of the embryo, between the endoderm and ectoderm. embryonic mesoderm entire mesoderm mesodermal mantle mesoderm Anterior part of the embryonic digestive tract that develops into a mouth. The stomodeum includes as parts an invagination of the ectoderm and the stomodeal cavity. stomodeal-hypophyseal primordium mouth primordium primitive oral cavity stomatodeum stomodaeum mouth pit oral ectoderm oral pit stomodeum A myogenic muscular circulatory organ found in the vertebrate cardiovascular system composed of chambers of cardiac muscle. It is the primary circulatory organ. chambered heart vertebrate heart branchial heart cardium heart The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as jellyfish and starfish have a decentralized nervous system without a brain, while sponges lack any nervous system at all. In vertebrates, the brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, balance, taste, and smell[WP]. encephalon suprasegmental levels of nervous system suprasegmental structures synganglion the brain brain Transparent part of camera-type eye that helps to refract light to be focused on the retina. camera-type eye lens eye lens lens lens crystallina crystalline lens lenses ocular lens lens of camera-type eye The retina is the innermost layer or coating at the back of the eyeball, which is sensitive to light and in which the optic nerve terminates. inner layer of eyeball retina of camera-type eye tunica interna of eyeball Netzhaut retinas retina An organ that detects light. light-detecting organ visual apparatus eye Anatomical cluster that consists of two or more adjacent skeletal structures, which may be interconnected by various types of tissue[VSAO]. articulation joint articular joint joints skeletal joint Anatomical system that has as its parts the organs concerned with reproduction. genital system genitalia Geschlechtsorgan animal reproductive system genital tract organa genitalia reproductive tissue reproductive tract systemata genitalia reproductive system Reproductive organ that produces and releases eggs (ovary) or sperm (testis). gonada gonads gonad The outer epithelial layer of the skin that is superficial to the dermis. epidermis skin vertebrate epidermis skin epidermis Functional system which consists of structures involved in respiration. apparatus respiratorius respiratory system Atmungssystem apparatus respiratorius systema respiratorium respiratory system Anatomical system that has as its parts the organs devoted to the ingestion, digestion, and assimilation of food and the discharge of residual wastes. alimentary system alimentary tract gastrointestinal system gut digestive system The renal system in an anatomical system that maintains fluid balance and contributes to electrolyte balance, acid/base balance, and disposal of nitrogenous waste products. excretory system systema urinaria systema urinarium urinary system urinary tract renal or urinary system renal/urinary system renal system Organ system that passes nutrients (such as amino acids and electrolytes), gases, hormones, blood cells, etc. to and from cells in the body to help fight diseases and help stabilize body temperature and pH to maintain homeostasis[WP]. systema cardiovasculare circulatory system Portion of connective tissue composed of adipocytes enmeshed in areolar tissue. fat fat tissue fatty tissue adipose bodyfat fatty depot adipose tissue A subdivision of the muscular system corresponding to a subdisivision of an organism. muscle group muscles set musculature musculi set of muscles set of skeletal muscles muscle system muscles musculature system musculature The nervous system is an organ system containing predominantly neuron and glial cells. In bilaterally symmetrical organism, it is arranged in a network of tree-like structures connected to a central body. The main functions of the nervous system are to regulate and control body functions, and to receive sensory input, process this information, and generate behavior [CUMBO]. neurological system nerve net systema nervosum nervous system The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the neural tube derivatives: the brain and spinal cord. In invertebrates it includes central ganglia plus nerve cord. CNS systema nervosum centrale cerebrospinal axis neuraxis central nervous system An enclosed, cable-like bundle of axons in the peripheral nervous system originating in a nerve root in the central nervous system (or a condensed nervous structure) connecting with peripheral structures. nerves peripheral nerve neural subtree nerve Anatomical system that overlaps the nervous system and is responsible for receiving and processing sensory information. organa sensuum sense organ subsystem sense organs sense organs set sensory subsystem sensory systems organa sensuum sensory organ system set of sense organs sensory system Anterior subdivision of a digestive tract. praeenteron proenteron foregut The caudalmost subdivision of a digestive tract. metenteron hindgut Primordia are populations of contiguous cells that are morphologically distinct and already correspond in extent to a later organ/tissue[FBbt, Hartenstein, V. (2004)]. bud future organ placode primordia rudiment primordium In the developing vertebrate, the neural tube is the embryo's precursor to the central nervous system, which comprises the brain and spinal cord. The neural groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into a closed tube, the neural tube or neural canal (which strictly speaking is the center of the neural tube), the ectodermal wall of which forms the rudiment of the nervous system. [WP,unvetted]. neural primordium presumptive central nervous system tubus neuralis neural tube Biological entity that is either an individual member of a biological species or constitutes the structural organization of an individual member of a biological species. anatomical entity A zone of skin that is part of a head [Automatically generated definition]. adult head zone of skin head skin head zone of skin zone of skin of adult head zone of skin of head skin of head A zone of skin that is part of a trunk [Automatically generated definition]. torso zone of skin trunk skin trunk zone of skin zone of skin of torso zone of skin of trunk skin of trunk Transudate contained in the pleural cavity. pleural fluid Excretion that is the output of a kidney. urine Secretion produced by a sweat gland. skin exudate sweat Joint fluid is a transudate of plasma that is actively secreted by synovial cells. joint fluid synovial fluid Muscle tissue which is unstriated, composed primarily of smooth muscle fibers surrounded by a reticulum of collagen and elastic fibers. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length[GO]. involuntary muscle non-striated muscle smooth muscle textus muscularis nonstriatus visceral muscle visceral muscle tissue textus muscularis levis; textus muscularis nonstriatus smooth muscle tissue Mucosal layer that lines the intestine. bowel mucosa bowel mucosa of organ bowel mucous membrane bowel organ mucosa intestine mucosa intestine mucosa of organ intestine mucous membrane intestine organ mucosa mucosa of bowel mucosa of intestine mucosa of organ of bowel mucosa of organ of intestine mucous membrane of bowel mucous membrane of intestine organ mucosa of bowel organ mucosa of intestine tunica mucosa intestini intestinal mucosa An anatomical wall that is part of a intestine [Automatically generated definition]. anatomical wall of bowel anatomical wall of intestine bowel anatomical wall bowel wall intestinal wall intestine anatomical wall intestine wall wall of bowel bowel wall wall of intestine Epithelial layer that lines the intestine. bowel epithelial tissue bowel epithelium epithelial tissue of bowel epithelial tissue of intestine epithelium of bowel epithelium of intestine intestine epithelial tissue villous epithelium intestine epithelium intestinal epithelium The anus and surrounding regions. Encompasses both internal and external regions, where present. posterior posterior end of organism anal region A clear, colorless, bodily fluid, that occupies the subarachnoid space and the ventricular system around and inside the brain and spinal cord. CSF cerebral spinal fluid liquor cerebrospinalis spinal fluid cerebrospinal fluid A zone of skin that is part of a thorax [Automatically generated definition]. thoracic skin thorax skin thorax zone of skin zone of skin of thorax upper body skin skin of thorax An organism subdivision that includes the pectoral girdle skeleton and associated soft tissue. Note that this includes both the skeletal elements and associated tissues (integument, muscle, etc). Examples: There are only two instances in an organism, right and left pectoral girdle regions. cingulum membri superioris girdle - pectoral cingulum membri superioris shoulder girdle upper limb girdle pectoral girdle pectoral region pectoral girdle region A lymphatic vessel that is part of a face [Automatically generated definition]. buccal lymphatic vessel face lymph vessel face lymphatic vessel lymph vessel of face lymphatic vessel of face FL facial lymphatic vessel PL pectoral lymphatic vessel Anatomical system that is a multi-element, multi-tissue anatomical cluster that consists of the skeleton and the articular system. skeleton system set of all bones and joints Skelettsystem skeletal system head subdivision head region region of head subdivision of head A subdivision of the head that has as parts the layers deep to the surface of the anterior surface, including the mouth, eyes, and nose (when present). In vertebrates, this includes the facial skeleton and structures superficial to the facial skeleton (cheeks, mouth, eyeballs, skin of face, etc). facia/facies visage face A vessel that contains or conveys lymph, that originates as an interfibrillar or intercellular cleft or space in a tissue or organ, and that if small has no distinct walls or walls composed only of endothelial cells and if large resembles a vein in structure[BTO]. lymph vessel vas lymphaticum lymphatic vessel Skeletal element that is composed of bone tissue. bone organ bone bones bone element A tube extending from the mouth to the anus. gut digestive tube enteric tract alimentary canal alimentary tract digestive canal gut tube digestive tract The ciliary muscle is a ring of smooth muscle in the middle layer of the eye that controls the eye's accommodation for viewing objects at varying distances and regulates the flow of aqueous humour through Schlemm's canal. [WP,unvetted]. musculus ciliarus Bowman`s muscles ciliaris musculus ciliaris ciliary muscle iris muscle iris muscle organ muscle organ of iris muscle of iris Organ consisting of a tissue made up of various elongated cells that are specialized to contract and thus to produce movement and mechanical work[GO]. muscle muscle organ Subdivision of skeleton which includes upper and lower jaw skeletons. jaw jaw cartilage mandibular arch skeleton anterior splanchnocranium jaws mandibular arch oral jaw skeleton pharyngeal arch 1 skeleton visceral arch 1 jaw skeleton Subdivision of head that consists of the lower jaw skeletal elements plus associated soft tissue (skin, lips, muscle)[cjm]. mandibular part of mouth lower part of mouth mandibular series lower jaw region The space in the eye, filled with aqueous humor, and bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and part of the crystalline lens. anterior chamber anterior chamber of eye camera anterior eye anterior chamber camera anterior bulbi camera anterior bulbi oculi camera oculi anterior anterior chamber of eyeball The pigmented middle of the three concentric layers that make up an eye, consisting of the iris, ciliary body and choroid[WP,edited]. tunica vasculosa of eyeball uvea uveal tract pars iridica retinae tunica vasculatis oculi tunica vasculosa bulbi vascular layer of eyeball uvea The adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye. anterior uvea irides irises iris The thickened portion of the vascular tunic, which lies between the choroid and the iris, composed of ciliary muscle and ciliary processes. ocular ciliary body anterior uvea ciliary bodies corpus ciliare ciliary body Vascular layer containing connective tissue, of the eye lying between the retina and the sclera. The choroid provides oxygen and nourishment to the outer layers of the retina. Along with the ciliary body and iris, the choroid forms the uveal tract[WP]. choroid choroid coat choroidea eye choroid posterior uvea chorioid choroidea optic choroid optic choroid A double layer covering the ciliary body that produces aqueous humor. ciliary body epithelium epithelium of ciliary body ocular ciliary epithelium ciliary epithelium A thick watery refractive medium that fills the space between the lens and the cornea[WP]. aqueous humor aqueous humour humor aquosus aqueous humor of eyeball A transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina. portion of vitreous humor humor vitreous humor vitreus vitreous whole portion of vitreous humor humoral fluid ocular fluid vitreous fluid vitreous humour vitreous humor Gelatinous mucoid tissue that is composed of vitreous humor and fills the cavity behind the crystalline lens of the eye and in front of the retina[MP,modified]. vitreous body The chamber in the eyeball enclosing the vitreous humor, bounded anteriorly by the lens and ciliary body and posteriorly by the posterior wall of the eyeball[BTO,modified]. camera postrema camera postrema bulbi oculi camera vitrea camera vitrea bulbi postremal chamber postremal chamber of eyeball vitreous chamber vitreous chamber of eyeball Any of the parts of the eye that lie in front of, or ventral to, the lens (inclusive). anterior eye segment anterior segment eye anterior segment of eye anterior segment of the eye eye anterior segment segmentum anterius (bulbus oculi) segmentum anterius bulbi oculi anterior segment of eyeball Any of the parts of the eye that lie in back of, or dorsal to, the lens (but not inclusive). eye posterior segment posterior eye segment posterior segment eye posterior segment of eye posterior segment of the eye segmentum posterius (bulbus oculi) segmentum posterius bulbi oculi posterior segment of eyeball A layer of epithelial cells that is part of the eye. epithelial tissue of eye lens epithelial tissue of lens epithelium lentis epithelium of eye lens eye lens epithelial tissue eye lens epithelium lens epithelial tissue lens epithelium epithelium of lens A fluid produced in the oral cavity by salivary glands, typically used in predigestion, but also in other functions. salivary gland secretion sailva normalis saliva atomaris saliva molecularis saliva Fatty lubricant matter secreted by sebaceous glands, and made of made of triglyceride oils, wax, squalene, and metabolytes of fat-producing cells[BTO,WP]. sebum A network formed by blood vessels and the tela choroidea which secretes CSF into the ventricular spaces. CP chorioid plexus plexus choroideus choroid plexus of cerebral hemisphere plexus choroideus ventricular choroid plexus choroid plexus The most anterior region of the brain including both the telencephalon and diencephalon. FB prosencephalon forebrain Part of the forebrain consisting of paired olfactory bulbs and cerebral hemispheres. supratentorial region cerebrum endbrain telencephalon The division of the forebrain that develops from the foremost primary cerebral vesicle. DiE between brain interbrain mature diencephalon thalamencephalon betweenbrain diencephalon diencephalon A specialized brain region of the ventral diencephalon arising near the end of the segmentation period; the embryonic hypothalamic region will give rise to the posterior pituitary gland as well as a number of brain nuclei. [ZFA]. One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis).[Wikipedia]. Hy preoptico-hypothalamic area preoptico-hypothalamic region hypothalamus hypothalamus An emulsion of fat globules within a fluid that is secreted by the mammary gland during lactation. mammary gland milk milk The liquid component of blood, in which erythrocytes are suspended. plasma portion of plasma blood plasm portion of blood plasma blood plasma Vital aqueous secretion of the liver that is formed by hepatocytes and modified down stream by absorptive and secretory properties of the bile duct epithelium. fel gall bile A vessel through which blood circulates in the body. vascular element region of vascular tree organ vascular tree organ region vas sanguineum blood vessel Portion of semisolid bodily waste discharged through the anus[MW,modified]. excreta faeces fecal material fecal matter piece of shit portion of excrement portion of faeces portion of fecal material portion of fecal matter portion of feces portionem cacas stool cow dung cow pat dung fewmet frass guano portion of dung portion of guano portion of scat scat spraint droppings excrement ordure spoor feces A nervous system structure composed primarily of nerve cell bodies (somas). May also include dendrites and the initial unmyelinated portion of axons. gray matter gray matter of neuraxis grey matter grey matter of neuraxis grey substance neuronal grey matter substantia grisea gray mater grisea gray matter An interconnected tubular multi-tissue structure contains fluid that is actively transported around the organism[ZFA]. Examples: vasculature of lung, vasculature of face. vascular network vasculature Anatomical structure that is part of an embryo. developing embryonic structure embryonic anatomical structure developing structure embryonale Struktur embryonic structures embryonic structure The dermis is a layer of skin between the epidermis (with which it makes up the skin) and subcutaneous tissues, and is composed of two layers, the papillary and reticular dermis[WP]. vertebrate dermis corium cutis dermis Lowermost layer of the integumentary system in vertebrates. Types of cells that are found in the hypodermis are fibroblasts, adipose cells, and macrophages. It is derived from the mesoderm, but unlike the dermis, it is not derived from the dermatome region of the mesoderm. The hypodermis is used mainly for fat storage[WP]. hypoderm vertebrate hypodermis sub-tegumental tissue subcutaneous tissue subcutis subtegumental tissue superficial fascia tela subcutanea hypodermis An organ that is located within the body cavity (or in its extension, in the scrotum); it consists of organ parts that are embryologically derived from endoderm, splanchnic mesoderm or intermediate mesoderm; together with other organs, the viscus constitutes the respiratory, gastrointestinal, urinary, reproductive and immune systems, or is the central organ of the cardiovascular system. Examples: heart, lung, esophagus, kidney, ovary, spleen. visceral organ visceral organ system splanchnic tissue viscera visceral tissue viscus The postcranial subdivision of skeleton structural components forming the long axis of the vertebrate body; in Danio, consisting of the notochord, vertebrae, ribs, supraneurals, intermuscular bones, and unpaired median fins; in human consists of the bones of the vertebral column, the thoracic cage and the pelvis[ZFA+FMA]. axial skeleton post-cranial axial skeleton postcranial axial skeleton Subdivision of skeleton which which consists of all the skeletal elements in in the pectoral and pelvic appendage complexes[cjm]. appendicular skeleton entire appendicular skeleton paired fin skeleton skeleton appendiculare appendicular skeleton The organ covering the body that consists of the dermis and epidermis. entire skin skin organ entire integument integument integumental organ pelt skin skin of body The thin membranous structure between the two heart atria or the thick muscular structure between the two heart ventricles. cardiac septa heart septa heart septum septum of heart spiral septa cardiac septum Organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region. Includes the sacrum when present. thoracolumbar region torso trunk region Rumpf trunk The sensory system subserving the sense of vision. photosensory system visual organ system visual system A portion of adipose tissue that is part of the hypodermis, beneath the dermis. panniculus adiposus fatty layer of subcutaneous tissue hypodermis fat layer panniculus adiposus (tela subcutanea) panniculus adiposus telae subcutaneae subcutaneous fat layer fatty layer of superficial fascia subcutaneous fat subcutaneous adipose tissue Anatomical cluster consisting of the hematopoietic system and the lymphoid system, or its analogs. hematolymphoid system lymphomyeloid complex haemolymphoid system hemolymphoid system The dermis, epidermis and hypodermis. dermis plus epidermis plus hypodermis integumentum commune skin and subcutaneous tissue skin plus hypodermis the integument dermal system dermoid system skin tegument vertebrate integument integument Vasculature that is part of a head [Automatically generated definition]. adult head vascular network adult head vasculature cranial vasculature head vascular network vascular network of adult head vascular network of head vasculature of adult head head vasculature vasculature of head A vasculature that is part of a trunk [Automatically generated definition]. torso vascular network torso vasculature trunk vascular network trunk vasculature vascular network of torso vascular network of trunk vasculature of torso vasculature of trunk Vasculature that is part of the eye region. eye vascular network ocular blood vessel ocular vasculature vascular network of eye eye vasculature optic vasculature vasculature of eye Anatomical system that consists of the muscular and skeletal systems. musculo-skeletal system musculoskeletal system Joint in which the articulating bones or cartilages are connected by an articular capsule which encloses a synovial membrane and a synovial cavity. Examples: Temporomandibular joint, knee joint.[FMA]. articulatio synoviale diarthroses diarthrosis diarthrosis joint diarthrodial joints synovial joint hypothalamus periventricular zone zona periventricularis hypothalamicae periventricular zone of the hypothalamus periventricular zone of hypothalamus A brain ventricle that is part of a telencephalon. In mammals and species with an evaginated telencephalon, this is one of a pair of lateral structures, one in each hemisphere. lateral ventricle lateral ventricles telencephalic ventricle telencephalon lateral ventricle forebrain ventricle lateral ventricle of brain tectal ventricle telencephalic ventricles telencephalic vesicle telencephalic ventricle The yellow or brown waxy secretions produced by vestigial apocrine sweat glands in the external ear canal[MESH]. ear wax earwax cerumen Part of choroid plexus contained in the lateral ventricle. chorioid plexus of cerebral hemisphere of lateral ventricle chorioid plexus of lateral ventricle choroid plexus telencephalic ventricle lateral ventricle chorioid plexus of cerebral hemisphere lateral ventricle choroid plexus choroid plexus of lateral ventricle A neural nucleus that is part of the brain. brain nucleus brain nuclei nucleus of brain Somites are spheres of epithelial cells that form sequentially along the anterior-posterior axis of the embryo through mesenchymal to epithelial transition of the presomitic mesoderm. mesodermal cluster epimere epimere mesoderm epithelial somite somites somitic mesoderm somitus somite A specialized region of ectoderm found between the neural ectoderm (neural plate) and non-neural ectoderm and composed of highly migratory pluripotent cells that delaminate in early embryonic development from the dorsal neural tube and give rise to an astounding variety of differentiated cell types[MP]. NC crista neuralis neural crest material neural crest Embryonic ectoderm that gives rise to nervous tissue. neural ectoderm neuroectoderm epithelium tubi neuralis; neuroectoderma neuaral ectoderm presumptive central nervous system ventral neurogenic region neurectoderm Tissue with cells that deposit non-polarized extracellular matrix including connective tissue fibers and ground substance. portion of connective tissue textus connectivus Bindegewebe connective tissue Muscle tissue is a contractile tissue made up of actin and myosin fibers[GO]. muscular tissue portion of muscle tissue textus muscularis muscle tissue Anatomical system that is involved in the production of hematopoietic cells. haematological system haemopoietic system organa haemopoietica Blutbildungssystem haematopoietic system hematological system hematolymphoid system hemopoietic system hematopoietic system Lymph is the fluid that is formed when interstitial fluid enters the conduits of the lymphatic system through lymph capillaries[WP]. lympha lymph Anatomical system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymphoid tissue, lymphocytes including the B cells and T cells, and antibodies. immune system Connected anatomical system that forms a barrier between an animal and its environment. In vertebrates, the integumental system consists of the epidermis, dermis plus associated glands and adnexa such as hair and scales. In invertebrates, the integumental system may include cuticle. integumentary system body surface dermal system external covering of organism integumentum commune organism surface surface integumental system An epithelium that is part of the mouth and lines the oral cavity, typically stratified squamous, and may be para-, ortho- or non- keratinized. Primary barrier between oral environment and deeper tissues. epithelium of mucosa of mouth epithelium of oral mucosa oral epithelium A blood vessel that is part of a choroid [Automatically generated definition]. blood vessel of choroid blood vessel of choroid coat blood vessel of choroidea blood vessel of posterior uvea choroid blood vessel choroid blood vessels choroid blood vessels set choroid coat blood vessel choroidea blood vessel posterior uvea blood vessel vasa sanguinea choroideae set of choroid blood vessels choroidal blood vessel The lymphatic system in vertebrates is a network of conduits that carry a clear fluid called lymph. It also includes the lymphoid tissue through which the lymph travels. Lymphoid tissue is found in many organs, particularly the lymph nodes, and in the lymphoid follicles associated with the digestive system such as the tonsils. The system also includes all the structures dedicated to the circulation and production of lymphocytes, which includes the spleen, thymus, bone marrow and the lymphoid tissue associated with the digestive system[WP]. lymphatic system lymphatic circulatory system lymphatic drainage system systema lymphoideum lymphoid system Skeletal tissue with a collagen-rich extracellular matrix vascularized, mineralized with hydroxyapatite and typically including osteocytes located in lacunae that communicate with one another by cell processes (in canaliculi). Bone is deposited by osteoblasts. calcium tissue osseous tissue osteogenic tissue mineralized bone tissue bone portion of bone tissue bone tissue An epithelium that is part of a iris [Automatically generated definition]. epithelial tissue of iris epithelium of iris epithelium pigmentosum (iris) epithelium pigmentosum iridis iris epithelial tissue iris epithelium pigmented epithelium of iris iris pigmented epithelium iris epithelium In amniote animal embryology, the epiblast is a tissue type derived either from the inner cell mass in mammals or the blastodisc in birds and reptiles. It lies above the hypoblast. In mammalian embryogenesis, the columnar cells of the epiblast are adjacent to the trophoblast, while the cuboidal cells of the hypoblast are closer to the blastocoele. The epiblast, whilst referred to as the primary ectoderm, differentiates to form all three layers of the trilaminar germ disc in a process called gastrulation[WP]. The outer of the two layers of the blastoderm that form during gastrulation, corresponding to primitive ectoderm during gastrulation and to the definitive ectoderm after gastrulation[ZFA]. epiblast blastocyst ectoblast epiblastus primitive ectoderm epiblast (generic) Anatomical surface structure found in many aquatic organisms. It is a respiration organ whose function is the extraction of oxygen from water and the excretion of carbon dioxide. The microscopic structure of a gill is such that it presents a very large surface area to the external environment. Gills usually consist of thin filaments of tissue, branches, or slender tufted processes which have a highly folded surface to increase surface area. A high surface area is crucial to the gas exchange of aquatic organisms as water contains only 1/20 parts dissolved Oxygen compared to air. With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. Oxygen is carried by the blood to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. gill One of a series of paired bulges that develop along the lateral walls of the foregut. The pharyngeal arches have developmental contributions from endoderm, mesoderm, and neural crest cells and are separated by anterior lateral endoderm out-pockets known as pharyngeal pouches. pharyngeal arches branchial arch arcus pharyngei visceral arch pharyngeal arch Ectodermal placode that develops in the head into a part of the sensory nervous system. With a few exceptions (lens, adenohypophyseal), cranial placodes are neurogenic. ectodermal placode placode ectodermal cranial placode cranial placodes cranial placode Anatomical space which contains portions of one or more body substances and is bounded by the internal surface of one maximally connected anatomical structure. Examples: cranial cavity, pharyngeal recess space, nasal cavity, tooth socket, cavity of serous sac, lumen of stomach, lumen of artery, fornix of vagina. cavity anatomical cavity Anatomical divisons of the brain according to one or more criteria, e.g. cytoarchitectural, gross anatomy. Parts may be contiguous in 3D or not, e.g., basal ganglia. anatomical structure of brain biological structure of brain brain anatomical structure brain biological structure brain part neuraxis segment neuroanatomical region segment of brain regional part of brain A wall, dividing a cavity or structure into smaller ones[WP]. septa septum The portion of neural plate anterior to the mid-hindbrain junction. anterior neural plate pre-chordal neural plate Unsegmented field of paraxial mesoderm present posterior to the most recently formed somite pair, from which somites will form. segmental plate unsegmented paraxial mesoderm PSM presumptive somite mesoderm somitogenic mesoderm somitomeric mesoderm unsegmented mesenchyme presomitic mesoderm Blood islands are structures in the developing embryo which lead to many different parts of the circulatory system. They primarily derive from plexuses formed from angioblasts. Within them, vacuoles appear through liquefaction of the central part of the syncytium into plasma. The lumen of the blood vessels thus formed is probably intracellular. The flattened cells at the periphery form the endothelium. The nucleated red blood corpuscles develop either from small masses of the original angioblast left attached to the inner wall of the lumen or directly from the flat endothelial cells. In either case the syncytial mass thus formed projects from and is attached to the wall of the vessel. Such a mass is known as a blood island and hemoglobin gradually accumulates within it. Later the cells on the surface round up, giving the mass a mulberry-like appearance. Then the red blood cells break loose and are carried away in the plasma. Such free blood cells continue to divide. Blood islands have been seen in the area vasculosa in the omphalomesenteric vein and arteries, and in the dorsal aorta[WP, unvetted]. ventral lateral plate mesoderm blood islands VBI caudal hematopoietic tissue posterior ICM posterior blood island ventral blood island blood island A horseshoe-shaped thickening of the endoderm at the cranial (rostral) end of the primitive streak formed by the involution of Spemann's organizer cells which, together with the notochord, induces the formation of the neural plate from the overlying ectodermal cells and contributes mesodermal type cells to the surrounding tissue. head mesenchyme head mesoderm prechordal plate The intermediate mesoderm is located between the lateral mesoderm and the paraxial mesoderm. It develops into the kidney and gonads. IM intermediate mesenchyme intermediate plate intermediate plate mesoderm mesenchyma intermedium intermediate mesoderm The axial mesoderm includes the prechordal mesoderm and the chordamesoderm. It gives rise to the prechordal plate and to the notochord. chordamesoderm axial mesoderm Portion of tissue that is part of the anterior neural keel and will form the optic vesicle[ZFA]. A paired ectodermal placode that becomes invaginated to form the embryonic lens vesicles. eye placode occular primordium ocular primordium optic placode optic placode of camera-type eye optic primordium eye anlage eye field optic field optic placodes eye primordium Multi-tissue structure that is comprised of neural and non-neural epithelial layers which will form the retina and retinal pigmented epithelium of the mature eye[ZFA]. double walled structured formed by expansion and invagination of the distal end of the optic vesicle that develops into the pigmented and sensory layers of the retina while the mouth of the optic cup eventually forms the pupil of the eye[MP]. eye cup eyecup ocular cup ophtalmic cup optic cup A thickened portion of ectoderm which serves as the precursor to the lens. SOX2 and Pou2f1 are involved in its development[WP]. lens placodes placoda lentis lens placode A region of embryonic ectodermal cells that lie directly above the notochord. During neurulation, they change shape and produce an infolding of the neural plate (the neural fold) that then seals to form the neural tube[XAO]. The earliest recognizable dorsal ectodermal primordium of the central nervous system present near the end of gastrulation before infolding to form the neural keel; consists of a thickened pseudostratified epithelium[ZFA]. lamina neuralis presumptive central nervous system neural plate The paraxial mesoderm is the mesoderm located bilaterally adjacent to the notochord and neural tube[GO]. paraxial mesenchyme somitic mesoderm mesoderma paraxiale paraxial mesoderm anterior neural tube Portion of the middle of the three primary germ layers of the embryo that resides on the periphery of the embryo, is continuous with the extra-embryonic mesoderm, splits into two layers enclosing the intra-embryonic coelom, and gives rise to body wall structures[MP]. LPM lateral mesoderm lateral plate lateral plate mesenchyme mesoderma laminae lateralis lateral plate mesoderm Bilateral groups of cells consisting of three rows: one row of endocardial precursors medially and two rows of myocardical precursors laterally. The two populations fuse at the midline to form the heart rudiment or cone. cardiac field fused heart primordium heart primordium Ventral somitic compartment that is a precursor of the axial skeleton[XAO]. Sclerotomes eventually differentiate into the vertebrae and most of the skull. The caudal (posterior) half of one sclerotome fuses with the rostral (anterior) half of the adjacent one to form each vertebra. From their initial location within the somite, the sclerotome cells migrate medially towards the notochord. These cells meet the sclerotome cells from the other side to form the vertebral body. From this vertebral body, sclerotome cells move dorsally and surround the developing spinal cord, forming the vertebral arch[WP]. sclerotomes sclerotomus sclerotome Neural crest cells (NCCs) originating in the anterior part of the developing embryo and residing between the mid-diencephalon and the forming hindbrain; cranial NCCs migrate dorsolaterally to form the craniofacial mesenchyme that differentiates into various craniofacial cartilages and bones, cranial neurons, glia, and connective tissues of the face; these cells enter the pharyngeal pouches and arches where they give rise to thymic cells, bones of the middle ear and jaw (mandible), and the odontoblasts of the tooth primordia; like their counterparts in the trunk, cranial NCCs also contribute to the developing peripheral nervous system, along with the pigmented cell (i.e. melanocyte) lineage. CNC cephalic neural crest cranial NCC population head NCC population crista neuralis cranialis head crest head neural crest cranial neural crest Anatomical structure that overlaps the outer epithelial layer and is adjacent to the space surrounding the organism. anatomical surface feature surface feature surface region surface structures surface structure Anatomical structure that has as its parts two or more multi-tissue structures of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona fide boundaries from other distinct anatomical structures of different types. organ compound organ Portion of tissue composed of mesenchymal cells (motile cells that develop from epthelia via an epithelial to mesenchymal transition) and surrounding extracellular material. Mesenchyme has different embryological origins in different metazoan taxa - in many invertebrates it derives in whole or part from ectoderm. In vertebrates it derives largely from mesoderm, and sometimes the terms are used interchangeably, e.g. lateral plate mesoderm/mesenchyme. mesenchymal tissue mesenchyme tissue portion of mesenchymal tissue portion of mesenchyme tissue mesenchyma mesenchyme Upper portion of the skull that excludes the mandible (when present in the organism). bones of cranium ossa cranii set of bones of cranium skull minus mandible upper part of skull calvarium epicranial plate skeletal system of head cranium Anatomical structure that is part of the head consisting entirely of cranium and mandible[WP]. cranial skeleton skeletal system of head skull An organ involved in reproduction. genital organ reproductive system organ sex organ genitalia reproductive organ Septum that divides the internal chambers (camerae) of the shell of a cephalopod, namely nautiloids or ammonoids. shell septum An epithelium that is part of a lower jaw [Automatically generated definition]. epithelial tissue of lower jaw epithelial tissue of ventral mandibular arch epithelium of ventral mandibular arch lower jaw epithelial tissue lower jaw epithelium ventral mandibular arch epithelial tissue ventral mandibular arch epithelium epithelium of lower jaw An endoderm that is part of a foregut [Automatically generated definition]. foregut endoderm endoderm of foregut An endoderm that is part of a hindgut [Automatically generated definition]. hindgut endoderm endoderm of hindgut A subdivision of the skeleton that corresponds to the lower part of the mouth. The lower jaw skeleton includes the following elements, when present: lower jaw teeth, the mandible and other lower jaw bones, and Meckel's cartilage. lower jaw mandible lower jaw skeleton mandibles mandibular series skeleton of lower jaw A blood island that is part of a mesoderm. mesoderm blood islands mesenchyme blood island mesoderm blood island Mesenchyme that is part of a developing camera-type eye. mesenchyme of eye eye mesenchyme Mesenchyme that is part of a developing lower jaw [Automatically generated definition]. lower jaw mesenchyme mesenchyme of ventral mandibular arch ventral mandibular arch mesenchyme mesenchyme of lower jaw A mucosa that is part of a oral opening [Automatically generated definition]. mucosa of oral opening mucosa of oral part of face mucosa of organ of oral opening mucosa of organ of oral part of face mucosa of organ of oral region mucosa of organ of subdivision of mouth mucosa of subdivision of mouth mucous membrane of oral opening mucous membrane of oral part of face mucous membrane of oral region mucous membrane of subdivision of mouth oral opening mucosa oral opening mucosa of organ oral opening mucous membrane oral opening organ mucosa oral part of face mucosa oral part of face mucosa of organ oral part of face mucous membrane oral part of face organ mucosa oral region mucosa oral region mucosa of organ oral region mucous membrane oral region organ mucosa organ mucosa of oral opening organ mucosa of oral part of face organ mucosa of oral region organ mucosa of subdivision of mouth subdivision of mouth mucosa subdivision of mouth mucosa of organ subdivision of mouth mucous membrane subdivision of mouth organ mucosa mucosa of oral region A layer of epithelial cells on the surface of the mucosa. lamina epithelialis mucosa lamina epithelialis mucosae epithelium of mucosa An epithelium that is part of a hindgut [Automatically generated definition]. epithelial tissue of hindgut hindgut epithelial tissue hindgut epithelium epithelium of hindgut Any of the striated muscles that move the eye and include: superior rectus, inferior rectus, medial rectus, lateral rectus, superior oblique, inferior oblique, retractor bulbi. ocular smooth muscle smooth muscle of eye An adipose tissue that is part of a dermis [Automatically generated definition]. adipose tissue of dermis dermis fat tissue dermis fatty tissue fat tissue of dermis fatty tissue of dermis dermis adipose tissue A nerve that is part of the trunk region of the body (not to be confused with a nerve trunk). nerve of torso nerve of trunk torso nerve trunk nerve nerve of trunk region A lymphatic vessel that is part of a respiratory system [Automatically generated definition]. apparatus respiratorius lymph vessel apparatus respiratorius lymphatic vessel lymph vessel of apparatus respiratorius lymph vessel of respiratory system lymphatic vessel of apparatus respiratorius lymphatic vessel of respiratory system respiratory system lymph vessel respiratory system lymphatic vessel A bone that is part of a head [Automatically generated definition]. adult head bone adult head bone organ bone of adult head bone of head bone organ of adult head bone organ of head head bone organ craniofacial bone head bone A bone that is part of a facial skeleton [Automatically generated definition]. bone of facial skeleton facial bone facial skeleton bone bone of viscerocranium viscerocranium bone facial bone A bone that is part of a trunk [Automatically generated definition]. bone of torso bone of trunk bone organ of torso bone organ of trunk torso bone torso bone organ trunk bone organ trunk bone A blood vessel that is part of a head [Automatically generated definition]. adult head blood vessel blood vessel of adult head blood vessel of head head blood vessel A blood vessel that is part of a heart [Automatically generated definition]. blood vessel of heart cardiac blood vessel heart blood vessel A blood vessel that is part of a brain [Automatically generated definition]. blood vessel of brain brain blood vessel A blood vessel that is part of a retina [Automatically generated definition]. blood vessel of inner layer of eyeball blood vessel of retina blood vessel of tunica interna of eyeball inner layer of eyeball blood vessel retinal blood vessel tunica interna of eyeball blood vessel retina blood vessel A blood vessel that is part of a respiratory system [Automatically generated definition]. apparatus respiratorius blood vessel blood vessel of apparatus respiratorius blood vessel of respiratory system respiratory system blood vessel A blood vessel that is part of a iris [Automatically generated definition]. blood vessel of iris iris blood vessel A blood vessel that is part of a trunk [Automatically generated definition]. blood vessel of torso blood vessel of trunk torso blood vessel trunk blood vessel A gray matter that is part of a brain [Automatically generated definition]. brain grey matter brain grey substance gray matter of brain grey matter of brain grey substance of brain brain gray matter A portion of connective tissue that is part of a head [Automatically generated definition]. adult head connective tissue adult head portion of connective tissue adult head textus connectivus connective tissue of adult head connective tissue of head head portion of connective tissue head textus connectivus portion of connective tissue of adult head portion of connective tissue of head textus connectivus of adult head textus connectivus of head head connective tissue A portion of connective tissue that is part of a respiratory system [Automatically generated definition]. apparatus respiratorius connective tissue apparatus respiratorius portion of connective tissue apparatus respiratorius textus connectivus connective tissue of apparatus respiratorius connective tissue of respiratory system portion of connective tissue of apparatus respiratorius portion of connective tissue of respiratory system respiratory system portion of connective tissue respiratory system textus connectivus textus connectivus of apparatus respiratorius textus connectivus of respiratory system respiratory system connective tissue A portion of connective tissue that is part of a dermis [Automatically generated definition]. connective tissue of dermis dermis portion of connective tissue dermis textus connectivus portion of connective tissue of dermis textus connectivus of dermis dermis connective tissue A portion of connective tissue that is part of a trunk [Automatically generated definition]. connective tissue of torso connective tissue of trunk portion of connective tissue of torso portion of connective tissue of trunk textus connectivus of torso textus connectivus of trunk torso connective tissue torso portion of connective tissue torso textus connectivus trunk portion of connective tissue trunk textus connectivus trunk connective tissue Portion of tissue in the nervous system which consists of neurons and glial cells, and may also contain parts of the vasculature. nerve tissue nervous tissue portion of neural tissue neural tissue A mucous membrane that lines the mouth. mouth mucosa mouth mucous membrane mouth organ mucosa mucosa of mouth mucous membrane of mouth oral mucous membrane oral part of viscerocranial mucosa tunica mucosa oris buccal mucosa mucosal lining of mouth oral mucosa tunica mucosa oris mouth mucosa A nerve that is part of a thorax [Automatically generated definition]. nerve of thorax thoracic segment nerve thorax nerve upper body nerve nerve of thoracic segment A bone that is part of a thorax [Automatically generated definition]. bone of thorax bone organ of thorax thorax bone thorax bone organ upper body bone thoracic segment bone Any muscle organ that is part of a respiratory system [Automatically generated definition]. apparatus respiratorius muscle organ muscle organ of apparatus respiratorius muscle organ of respiratory system respiratory system muscle organ respiratory system muscle A blood vessel that is part of a thorax [Automatically generated definition]. blood vessel of thorax thorax blood vessel upper body blood vessel thoracic segment blood vessel A portion of connective tissue that is part of a thorax [Automatically generated definition]. connective tissue of thorax portion of connective tissue of thorax textus connectivus of thorax thorax connective tissue thorax portion of connective tissue thorax textus connectivus upper body connective tissue thoracic segment connective tissue A neural crest that has_potential_to_developmentally_contribute_to a hindbrain. neural crest hindbrain rhombencephalic neural crest rhombomere neural crest rhombencephalon neural crest Mesenchyme that is part of a developing gonad [Automatically generated definition]. gonada mesenchyme mesenchyme of gonad mesenchyme of gonada gonad mesenchyme The epithelial component of the choroid plexus. Consists of cuboidal epithelial cells surrounding a core of capillaries and loose connective tissue. choroid plexus epithelial tissue epithelial tissue of chorioid plexus of cerebral hemisphere epithelial tissue of choroid plexus epithelium of choroid plexus choroid plexus epithelium Epithelial tubes transport gases, liquids and cells from one site to another and form the basic structure of many organs and tissues, with tube shape and organization varying from the single-celled excretory organ in Caenorhabditis elegans to the branching trees of the mammalian kidney and insect tracheal system. epithelial or endothelial tube epithelial tube An epithelium that lines the lumen of the digestive tract. digestive tract epithelial tissue epithelial tissue of digestive tract epithelial tissue of gut epithelium of digestive tract epithelium of gut gastrodermis gut epithelial tissue gut epithelium alimentary tract epithelium digestive tract epithelium The brain ventricles or their associated choroid plexuses. brain ventricle/choroid plexus A transitional population of migrating mesenchymal cells that derive from somites and that will become dermal cells. cutis plate dermatomal mesenchyme epimere mesoderm mesenchyma dermatomiale dermatome One of the system of communicating cavities in the brain that are continuous with the central canal of the spinal cord, that like it are derived from the medullary canal of the embryo, that are lined with an epithelial ependyma, and that contain a serous fluid. brain ventricles cerebral ventricle region of ventricular system of brain brain ventricle The subdivision of the face that includes the eye (eyeball plus adnexa such as eyelids) and the orbit of the skull and associated parts of the face such as the eyebrows, if present. content of orbital part of eye eye region orbital part of face ocular and peri-ocular region ocular region orbital content orbital part of eye orbital region 2 Any tube, opening or passage that connects two distinct anatomical spaces. foramen foramina opening ostia ostium anatomical conduit A vasculature that is part of a iris [Automatically generated definition]. iris blood vessels iris vascular network iris vasculature vascular network of iris vasculature of iris An anatomical structure that develops (entirely or partially) from the endoderm. endoderm-derived structure An anatomical structure that develops (entirely or partially) from the mesoderm. mesodermal derivative mesoderm-derived structure An anatomical structure that develops (entirely or partially) from the ectoderm. ectodermal deriviative ectoderm-derived structure Anatomical system that has as its parts the organs concerned with the production and excretion of urine and those concerned with reproduction. urogenital system GU tract UG tract Urogenitalsystem genito-urinary system genitourinary tract urogenital tract genitourinary system The optic vesicle is the evagination of neurectoderm that precedes formation of the optic cup[GO]. Portion of tissue that is comprised of neuroepitheium which has pinched off from the anterior neural keel and will form the optic cup[ZFA]. evagination eye vesicle ocular vesicle optic vesicles optic vesicle The first recognizable structure derived from the heart field. myocardial plate cardiac crescent cardiogenic crescent heart rudiment cardiogenic plate A specific region of the lateral mesoderm that will form the primary beating heart tube. In mammals the primary heart field gives rise to the left ventricle. first heart field primary heart field FHF PHF heart field primary heart field An epithelial tube that will give rise to the mature heart. embryonic heart tube endocardial heart tube endocardial tube heart tube A cardiac chamber surrounds an enclosed cavity within the heart. chamber of heart heart chamber cardiac chamber Organ that is part of the hematopoietic system. haematological system organ haemopoietic system organ hematopoeitic organ hematopoietic system organ organ of haematological system organ of haemopoietic system organ of hematopoietic system organ of organa haemopoietica organa haemopoietica organ hematopoeitic or lymphoid organ lymph organ lymphoid organ hemopoietic organ A portions of the gut that is derived from endoderm. endodermal gut gut endoderm endodermal part of digestive tract A portion of smooth muscle tissue that is part of a intestine [Automatically generated definition]. bowel involuntary muscle bowel non-striated muscle bowel smooth muscle bowel smooth muscle tissue intestine involuntary muscle intestine non-striated muscle intestine smooth muscle tissue involuntary muscle of bowel involuntary muscle of intestine non-striated muscle of bowel non-striated muscle of intestine smooth muscle of bowel smooth muscle of intestine smooth muscle tissue of bowel smooth muscle tissue of intestine intestinal muscularis intestinal smooth muscle intestine smooth muscle A portion of smooth muscle tissue that is part of a respiratory system [Automatically generated definition]. respiratory smooth muscle smooth muscle of respiratory system airway smooth muscle airway smooth muscle cell respiratory system smooth muscle A portion of smooth muscle tissue that is part of a digestive system [Automatically generated definition]. smooth muscle tissue of gastrointestinal system gastrointestinal system smooth muscle A portion of smooth muscle tissue that is part of an anal region [Automatically generated definition]. anal part of perineum involuntary muscle anal part of perineum non-striated muscle anal part of perineum smooth muscle anal part of perineum smooth muscle tissue anal region involuntary muscle anal region non-striated muscle anal region smooth muscle tissue anal triangle involuntary muscle anal triangle non-striated muscle anal triangle smooth muscle anal triangle smooth muscle tissue involuntary muscle of anal part of perineum involuntary muscle of anal region involuntary muscle of anal triangle non-striated muscle of anal part of perineum non-striated muscle of anal region non-striated muscle of anal triangle smooth muscle of anal part of perineum smooth muscle of anal region smooth muscle of anal triangle smooth muscle tissue of anal part of perineum smooth muscle tissue of anal region smooth muscle tissue of anal triangle anal region smooth muscle A portion of smooth muscle tissue that is part of a lymphatic vessel [Automatically generated definition]. involuntary muscle of lymph vessel involuntary muscle of lymphatic vessel lymph vessel involuntary muscle lymph vessel non-striated muscle lymph vessel smooth muscle lymph vessel smooth muscle tissue lymphatic vessel involuntary muscle lymphatic vessel non-striated muscle lymphatic vessel smooth muscle tissue non-striated muscle of lymph vessel non-striated muscle of lymphatic vessel smooth muscle of lymph vessel smooth muscle of lymphatic vessel smooth muscle tissue of lymph vessel smooth muscle tissue of lymphatic vessel lymphatic vessel smooth muscle A portion of smooth muscle tissue that is part of a iris [Automatically generated definition]. involuntary muscle of iris iridial smooth muscle iris involuntary muscle iris non-striated muscle iris smooth muscle tissue non-striated muscle of iris smooth muscle of iris smooth muscle tissue of iris iris smooth muscle Smooth muscle found within, and composing the majority of the wall of blood vessels. blood vessel involuntary muscle blood vessel non-striated muscle blood vessel smooth muscle tissue involuntary muscle of blood vessel non-striated muscle of blood vessel smooth muscle of blood vessel smooth muscle tissue of blood vessel vascular smooth muscle vascular smooth muscle tissue blood vessel smooth muscle Any muscle organ that is part of a skin of body [Automatically generated definition]. integumental system muscle muscle of integumental system muscle organ of skin skin muscle organ skin muscle A choroid plexus epithelium that is part of a lateral ventricle [Automatically generated definition]. chorioid plexus of cerebral hemisphere epithelial tissue of lateral ventricle chorioid plexus of cerebral hemisphere epithelium of lateral ventricle choroid plexus epithelial tissue of lateral ventricle choroid plexus epithelium of lateral ventricle epithelial tissue of chorioid plexus of cerebral hemisphere of lateral ventricle epithelial tissue of choroid plexus of lateral ventricle epithelium of chorioid plexus of cerebral hemisphere of lateral ventricle epithelium of choroid plexus of lateral ventricle lateral ventricle chorioid plexus of cerebral hemisphere epithelial tissue lateral ventricle chorioid plexus of cerebral hemisphere epithelium lateral ventricle choroid plexus epithelial tissue lateral ventricle epithelial tissue of chorioid plexus of cerebral hemisphere lateral ventricle epithelial tissue of choroid plexus lateral ventricle epithelium of chorioid plexus of cerebral hemisphere lateral ventricle epithelium of choroid plexus lateral ventricle choroid plexus epithelium A muscle that is part of the eye region. eye muscle Anatomical cluster that consists of all the skeletal elements (eg., bone, cartilage, and teeth) of the body. set of all bones set of bones of body skeleton The bilaminar epithelium formed from the myotome and dermatome. dermamyotome dermomyotomes dermomyotome A cone-like structure that is formed when myocardial progenitor cells of the heart field fuse at the midline. The heart rudiment is the first structure of the heart tube. heart cone rudimentary heart heart rudiment A lymphatic vessel smooth muscle that is part of a respiratory system [Automatically generated definition]. smooth muscle of lymph vessel of respiratory system respiratory system lymphatic vessel smooth muscle A blood vessel smooth muscle that is part of a respiratory system [Automatically generated definition]. smooth muscle tissue of blood vessel of respiratory system respiratory system blood vessel smooth muscle The first of the series of pharyngeal arches that develop into jaw bones or their homologs, and their associated nerves and arteries. 1st pharyngeal arch branchial arch 1 first branchial arch first pharyngeal arch first visceral arch mandibular arch visceral arch 1 1st arch 1st visceral arch arcus pharyngeus primus pharyngeal arch 1 Sum of all sensory systems in an organism. sense organ system entire sense organ system Any collection of muscles that is part of a thorax [Automatically generated definition]. muscle group of thorax muscles of thorax musculi thoracis set of muscles of thorax thoracic musculature musculature of thorax A subdivision of the musculature of the body in the pectoral girdle region. Includes pectoral and shoulder muscles. muscle group of pectoral girdle pectoral girdle muscles pectoral girdle musculature set of muscles of pectoral girdle musculature of pectoral girdle Any collection of muscles that is part of a face. entire facial musculature facial muscles muscle group of face musculi faciei set of facial muscles set of muscles of face musculature of face Any collection of muscles that is part of a trunk [Automatically generated definition]. muscle group of trunk set of muscles of trunk muscular system of trunk musculature of trunk A vasculature that is part of a muscle organ [Automatically generated definition]. muscular organ vasculature vasculature of muscle organ A vasculature that is part of a musculoskeletal system [Automatically generated definition]. vasculature of musculoskeletal system A projection or outgrowth of tissue from a larger body or organ. anatomical process process processus projection flange flanges lamella lamellae lamina laminae organ process papilla process of organ processes projection projections ridge ridges shelf shelves anatomical protrusion protrusion spine anatomical projection Anatomical system that has as its parts the heart and blood vessels. CV system Herz und Gefaesssystem cardiovascular system A network of blunt ended vessels lacking direct connection to the blood vascular system. These vessels collect and drain fluids and macromolecules from interstitial spaces throughout the animal. They derive from a subpopulation of endothelial cells and have walls that are much thinner than the blood carrying vessels. Lymphatic vessels are usually classified as either superficial or deep. lymphatic trunks and ducts lymphatic vasculature lymphatic vessel network lymphatic vessels set set of lymphatic vessels trunci et ductus lymphatici lymph vessels lymph vasculature A vascular network consisting of blood vessels. blood vascular network set of blood vessels blood system blood vessel system blood vessels blood vasculature The embryo and its adnexa (appendages or adjunct parts) or associated membranes (i.e. the products of conception) The conceptus includes all structures that develop from the zygote, both embryonic and extraembryonic. It includes the embryo as well as the embryonic part of the placenta and its associated membranes - amnion, chorion (gestational sac), and yolk sac[WP]. embryo plus adnexa conceptus A transverse unitary subdivision of the neural tube that shares a common dorsoventral structure (floor, basal, alar, and roof plates), but each having differential molecular identities and fates; they comprise the secondary prosencephalon, diencephalon (prosomeres), the midbrain (mesomeres), and the hindbrain (rhombomeres). neural tube metameric segment neural tube segment neuromere neuromeres neural metamere neural segment neuromere Any segmental subdivision of a nervous system. Includes metameric developmental segments, such as vertebrates neuromeres. neuromere segmental subdivision of nervous system Organism at the gastrula stage. gastrula embryo blastocystis trilaminaris tri-laminar disc tri-laminar disk trilaminar blastocyst trilaminar blastoderm trilaminar disc trilaminar disk trilaminar germ gastrula A specialized form of connective tissue in which the extracellular matrix is firm, providing the tissue with resilience, and/or mineralized and that functions in mechanical and structural support.[VSAO]. skeletal tissue Dermis-derived entity that is made of skeletal tissue. dermal element dermal skeletal element Organ consisting of skeletal tissue. Encompasses whole bones, fused bones, cartilaginious elements, teeth, dermal denticles. skeletal element A bone that is part of a cranium. cranium bone cranial bone Any bone that is part of the lower jaw skeleton. This includes (when present): the dentary/mandible, the articular, the splenial, the suprangular. lower jaw bone bone of lower jaw Anatomical system that consists of all the joints of the body. joint system set of all joints of body set of all joints set of joints of body articular system The mucous membrane lining the respiratory tract. apparatus respiratorius mucosa apparatus respiratorius mucosa of organ apparatus respiratorius mucous membrane mucosa of apparatus respiratorius mucosa of organ of apparatus respiratorius mucosa of organ of respiratory system mucosa of respiratory system mucous membrane of apparatus respiratorius mucous membrane of respiratory system respiratory system mucosa of organ respiratory system mucous membrane laryngeal mucous membrane respiratory mucosa respiratory tract mucosa respiratory system mucosa A mucosa that is part of a gastrointestinal system. digestive tract mucosa gut mucosa gut mucuous membrane mucosa of gut gastrointestinal system mucosa Any of the tissue layers that comprise a blood vessel. Examples: tunica media, tunica adventitia. blood vessel layer An epithelium that is part of a respiratory system [Automatically generated definition]. apparatus respiratorius epithelial tissue apparatus respiratorius epithelium epithelial tissue of apparatus respiratorius epithelial tissue of respiratory system epithelium of apparatus respiratorius epithelium of respiratory system respiratory system epithelial tissue respiratory system epithelium An epithelium that is part of a digestive system [Automatically generated definition]. digestive system epithelial tissue digestive system epithelium epithelial tissue of digestive system epithelial tissue of gastrointestinal system epithelium of digestive system epithelium of gastrointestinal system gastrointestinal system epithelial tissue gastrointestinal system epithelium A vasculature that is part of a retina [Automatically generated definition]. retina vasculature retina vasculature of camera-type eye retinal blood vessels retinal blood vessels set retinal vasculature set of blood vessels of retina set of retinal blood vessels vasa sanguinea retinae vasculature of retina Layer of lateral plate mesoderm that forms the circulatory system and future gut wall - overlies endoderm[WP]. visceral mesoderm inner layer of lateral plate mesoderm splanchnic mesoderm splanchnic layer of lateral plate mesoderm The fetal urogenital sinus (from which the prostate derives) is a simple cylinder of stratified basal epithelium, surrounded by mesenchyme and positioned between the embryonic bladder and pelvic urethra. UGE epithelium of urogenital sinus urogenital sinus epithelium Anatomical cluster that connects two or more adjacent skeletal elements or hardened body parts. joint articulation A portion of the gut that is derived from ectoderm. ectodermal gut gut ectoderm ectodermal part of digestive tract An epithelium surrounding a gonad. gonad epithelium gonadal epithelium gonadal sheath epithelium of gonad A proximal-distal subdivision of the digestive tract. alimentary system subdivision intestinal tract segment of intestinal tract subdivision of alimentary system subdivision of digestive tract A part of a wall of an organ that forms a layer. organ component layer An organ that is part of a immune system [Automatically generated definition]. immune system organ immune organ The median dorsal longitudinal groove formed in the embryo by the neural plate after the appearance of the neural folds. neural groove One of the two elevated edges of the neural groove[GO,MP]. medullary fold neural fold A solid rod of neurectoderm derived from the neural keel. The neural rod is roughly circular in cross section. Neural rod formation occurs during primary neurulation in teleosts[GO]. An intermediate stage in the development of the central nervous system present during the segmentation period; the neural rod is roughly cylindrical in shape, forms from the neural keel, and is not yet hollowed out into the neural tube[ZFIN]. neural tube rod neural rod An ectodermal placode is a thickening of the ectoderm that is the primordium of many structures derived from the ectoderm[GO]. epithelial placode ectodermal placode Muscle structures are contractile cells, tissues or organs that are found in multicellular organisms[GO]. musculus muscle muscle element muscle structure Any anatomical structure that is part of the reproductive system. reproductive system element reproductive system structure reproductive structure An epithelial sheet bent on a linear axis. epithelial fold A structure consisting of multiple cell components but which is not itself a cell and does not have (complete) cells as a part. multi-cell-component structure multi-cell-part structure cell part cluster multi cell part structure An organ or element that part of the trunk region. The trunk region can be further subdividied into thoracic (including chest and thoracic cavity) and abdominal (including abdomen and pelbis) regions. trunk organ trunk region element An organ or element that is in the thoracic cavity. Examples: lung, heart, longus colli. thoracic cavity organ thoracic cavity element An organ that part of the thoracic segment region. This region can be further subdividied chest and thoracic cavity regions. upper body organ thoracic segment organ Portion of primordial embryonic connective tissue of the developing head, consisting of mesenchymal cells supported in interlaminar jelly, that derive mostly from the mesoderm and contribute to head connective tissue, bone and musculature in conjunction with cranial neural crest cells. cephalic mesenchyme cranial mesenchyme desmocranium head mesenchyme Mesenchyme that is part of a developing trunk. trunk and cervical mesenchyme trunk mesenchyme A set of structures containing cerebrospinal fluid in the brain. It is continuous with the central canal of the spinal cord[WP]. CNS ventricular system ventricular system ventricular system of neuraxis ventricle system ventriculi cerebri ventricular system of central nervous system brain ventricular system ventricular system of brain A structure found in the walls of the ventricles of the brain, consisting of part of the meninges (pia mater in mammals) plus ependyma[cjm]. tela chorioidea tela choroidea Tela chorioidea that lines the telencephalic ventricle. tela chorioidea of lateral ventricle tela chorioidea of telencephalic ventricle tela chorioidea telencephalic ventricle tela choroidea (ventriculi lateralis) tela choroidea of lateral ventricle tela choroidea telencephalic ventricle tela choroidea of telencephalic ventricle A portion of tissue that is part of an embryo. portion of embryonic tissue developing tissue embryonic tissue Portion of tissue that is contiguous with the embryo and is comprised of portions of tissue or cells that will not contribute to the embryo. extra-embryonic tissue extraembryonic tissue A layer in the central nervous system that lines system of communicating cavities in the brain and spinal cord. ventricular layer region of wall of ventricular system of neuraxis ventricle of nervous system An array of photoreceptors and any supporting cells found in an eye. light-sensitive tissue photoreceptor array A transparent structure that is part of a visual sense organ, the function of which is to direct or focus light onto a photoreceptor array. lens transparent eye structure The part of the digestive system that excludes the hepatobiliary system. GI tract alimentary system alimentary tract gastro-intestinal system gastroenterological system gastrointestinal (GI) tract gastrointestinal system gastrointestinal tract alimentary part of gastrointestinal system developing structure developmental structure developmental tissue developing anatomical structure Portion of tissue that gives rise to the lens. hollow lens vesicle solid lens vesicle immature lens lens mass presumptive lens lens vesicle Multi-tissue structure that arises from the heart rudiment and will become the heart tube. primitive heart tube early primitive heart tube primitive heart tube Portion of tissue that gives rise to the immature gonad. future gonad gonadal primordium primitive gonad undifferentiated gonad immature gonad gonad primordium A somite that is part of a trunk. trunk somite A vascular network formed by frequent anastomoses between the blood vessels (arteries or veins) of a part. plexus vasculosus vascular plexus An epithelium that is part of a anterior chamber of eyeball. anterior chamber epithelium An epithelium that is part of a lens vesicle. lens vesicle epithelium Anatomical space that is an opening in a bone, usually for passage of blood vessels or nerves. foramen bone foramen An acellular anatomical structure that is the bounding layer of a anatomical structure. acellular membrane An acellular membrane that is part of the epithelium, lies adjacent to the epithelial cells, and is the fusion of the the basal lamina and the reticular lamina. basement membrane of connective tissue membrana basalis basement membrane basement membrane of epithelium A delimited region of dense mesenchyme within looser mesenchyme. mesenchyme condensation developing mesenchymal condensation The paired ventral prominences formed by bifurcation of the first pharyngeal arches in the embryo; the two prominences unite ventrally and fuse to form the mandible and lower lip. mandibular process mandibular swelling prominentia mandibularis mandibular prominence Epithelium that derives from the endoderm. Examples: urothelium, transitional epithelium of ureter, epithelium of prostatic gland.[FMA]. endoderm-derived epithelium endoepithelium endo-epithelium Subdivision of skeleton which consists of cranial skeleton, set of all vertebrae, set of all ribs and sternum[FMA, modified]. skeleton axiale axial skeleton plus cranial skeleton The laminar structure of the heart. heart layer Any of the arteries or veins that supply blood to the heart or return blood from the heart muscles to the circulation. coronary vessel Anatomical structure embedded in or located in the integument that is part of the integumental system. Examples: hair, follicles, skin glands, claws, nails, feathers. body hair or bristle adnexae cutis skin adnexa skin adnexal structure skin appendage integumentary adnexa The thin bilaminar membrane derived from the prechordal plate that is devoid of mesoderm and formed by the apposition of the stomodeal ectoderm with the foregut endoderm; after the embryonic head fold has evolved it lies at the caudal limit of the stomodeum, forming a septum between the primitive mouth and pharynx; the membrane eventually disappears, and thus a communication is established between the mouth and the future pharynx. oral membrane oral plate oropharyngeal membrane pharyngeal membrane buccopharyngeal membrane The foremost region of the future forebrain that develops into the diencephalon. presumptive diencephalon future diencephalon The embryonic precursor of the brain. brain rudiment presumptive brain encephalon embryonic brain future brain A presumptive structure that has the potential to develop into a forebrain. future prosencephalon presumptive forebrain presumptive prosencephalon prosencephalon future forebrain An anatomical junctions that overlaps the mouth and foregut. mouth-foregut junction Future brain vesicle that gives rise to telencephalic ventricle/lateral ventricles and 3rd ventricle. prosencephalic vesicle preevaginated forebrain vesicle forebrain ventricle forebrain vesicle prosencephalic ventricle early prosencephalic vesicle A segment of the eyeball that is filled with refractive media. eye chamber eyeball chamber chamber of eye chamber of eyeball Body substance in a liquid or semi-solid state in the eyeball which serves to refract light. ocular refractive media Liquid components of living organisms. includes fluids that are excreted or secreted from the body as well as body water that normally is not. fluid body fluid bodily fluid A substance that is secreted by a mammary gland. The substance may differ depending on phase, with colostrum produced during pregancy/early lactation, and milk produced afterwards. lactiferous gland fluid lactiferous gland secretion mammary gland fluid mammary gland secreted fluid mammary gland secretion secretion of mammary gland mammary gland fluid/secretion A tube that is part of a excretory system. excretory tube An organ system subdivision that is a network of vessels capable of removing accumulating protein and fluid from the interstitial space and returning it to the vascular space. In some species, this network is connected to the immune system via lymph nodes and lymphocyte-producing organs, with the whole being the lymphoid system. lymphatic system lymphatic tree system lymporeticular system lymphatic part of lymphoid system The pharynx is the part of the digestive system immediately posterior to the mouth[GO]. anterior part of foregut pharyngeal tube pharynx A nucleus of brain that is part of a hypothalamus. nucleus of hypothalamus hypothalamic nucleus A nucleus of brain that is part of a diencephalon. diencephalic nucleus Presumptive structure of the blastula that will develop into endoderm. presumptive endoderm future blood presumptive blood Portion of embryonic tissue determined by fate mapping to become a structure. future structure presumptive structures presumptive structure Presumptive structure of the blastula that will develop into ectoderm. presumptive epidermis presumptive ectoderm Presumptive structure of the blastula that will develop into mesoderm. presumptive mesoderm A rigid covering that envelops an object. shell A vasculature that is part of a organ. organ vasculature set of blood vessels of organ vasculature of organ A head mesenchyme that develops_from a mesoderm. head mesenchyme derived from mesoderm head mesenchyme from head mesoderm head mesenchyme from mesoderm mesenchyme derived from head mesoderm mesenchyme from head mesoderm cranial mesoderm head mesoderm head mesenchyme from mesoderm Mesenchyme that is part of a mandibular prominence. mesenchyme of mandibular process mesenchyme of mandibular prominence mandibular process mesenchyme The vascular cord is the primordial vasculature that will develop into blood vessels by the process of tubulogenesis[GO]. The vascular cord is composed of angioblast or vascular endothelial cells in a solid linear mass called a cord. The cord then undergoes tubulogenesis to form the lumen of the vessels[ZFA]. vascular cord The splanchnic mesoderm in the cardiogenic region where the heart develops; it gives rise to endocardial heart tubes that fuse to form the primordial cardiac tube, the heart primordium[web]. Two migratory heart primordia that move ventrally during the course of neurulation, and then fuse[XAO]. cardiogenic splanchnopleure cardiac mesoderm cardiogenic mesoderm cardiogenic region heart primordia cardiogenic splanchnic mesoderm Organism at the cleavage stage. cleaving embryo future digestive tract future digestive tube future gut primitive gut embryonic digestive tube primordial digestive tube primordial gut presumptive gut Cranial neural crest that migrates into the mandibular arch. mandibular neural crest A hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood or analogs[GO,modified]. dorsal tube heart adult heart primary circulatory organ A dark greenish mass that accumulates in the bowel during fetal life and is discharged shortly after birth. meconium An intermediate stage (between the neural plate and neural rod) during the early segmentation period in the morphogenesis of the central nervous system primordium; the keel is roughly triangular shaped in cross section. presumptive central nervous system neural keel Mesenchyme that develops_from a cranial neural crest. head mesenchyme from cranial neural crest head mesenchyme from neural crest head neural crest derived mesenchyme mesenchyme derived from head neural crest ventral pharyngeal arch 1 ventral mandibular arch ventral visceral arch 1 1st arch mandibular component Gray matter of the central nervous system which is a collection of clustered nuclei. cluster of neural nuclei neural nuclei nuclear complex nuclear complex of neuraxis A presumptive structure that has the potential to develop into a presomitic mesoderm. presumptive segmental plates presumptive segmental plate A presumptive structure that has the potential to develop into a neural plate. prospective neuroectoderm prospective vegetal ectoderm presumptive neural plate The part of the blastula that has the potential to develop into a paraxial mesoderm. future paraxial mesenchyme future paraxial mesoderm presumptive paraxial mesoderm The epidermis is the entire outer epithelial layer of an animal, it may be a single layer that produces an extracellular material (e.g. the cuticle of arthropods) or a complex stratified squamous epithelium, as in the case of many vertebrate species[GO]. epidermis epidermis (sensu Metazoa) outer epidermal layer outer epithelial layer hypoderm hypodermis outer epithelium Outermost layer of cells surrounding the embryo. EVL enveloping layer enveloping layer of ectoderm An epithelial tube open at both ends that allows fluid flow. epithelial tube open at both ends A closed epithelium with a lumen. epithelial vesicle Mesenchyme with little extracellular matrix. dense mesenchyme tissue Mesenchymal cells that are migrating. migrating mesenchyme population Epithelial layer of the retina, ciliary body, or iris composed of cells containing pigment granules. eye pigment epithelium pigment epithelium of eye 2 An anatomical structure that connects two structures. junction anatomical junction anatomical junction Anlagen are populations of contiguous cells, typically arranged in one plane, that are morphologically indistinct, but that already correspond in extent to a later organ/tissue. field developmental field future organ organ field anlage A bone that is part of a reproductive organ. baculum os penis/os clitoris bone of reproductive organ Any bodily fluid that has passed through a membrane such as the capillary wall, as a result of unbalanced hydrostatic and osmotic forces. plasma ultrafiltrate transudate Any fluid produced by a serous gland. serous fluid serosal fluid serous gland fluid secretion of serous gland Anatomical system that consists of all blood and lymph vessels. vascular system The anteriormost subdivision of the body that includes the head, jaws, pharyngeal region and the neck (if present). In vertebrates this is the subdivision that includes the cervical vertebrae. cephalic area cephalic part of animal cephalic region head and neck head or neck craniocervical region An organism subdivision that encompasses the region containing the pectoral or pelvic girdle. Note that this includes both the skeletal elements and associated tissues (integument, muscle, etc). girdle girdle region fin girdle fin girdle region limb girdle limb girdle region appendage girdle region A bone that is part of a appendage girdle region. girdle bone girdle bone/zone A bone that is part of a pectoral girdle region. bone of pectoral girdle pectoral girdle bone A subdivision of a limb or fin skeleton consisting of bones which connects the upper limb or fin to the axial skeleton on each side. It consists of the clavicle and scapula in humans and, in those species with three bones in the pectoral girdle, the coracoid. Some mammalian species (e.g. the dog and the horse) have only the scapula. In humans, the only joints between the shoulder girdle and axial skeleton are the sternoclavicular joints on each side. No joint exists between each scapula and the rib cage; instead the muscular connection between the two permits relatively great mobility of the shoulder girdle in relation to the pelvic girdle. In those species having only the scapula, no joint exists between the forelimb and the thorax, the only attachment being muscular[WP]. Examples: There are only two instances, right and left pectoral girdle skeletons. skeletal parts of pectoral girdle skeleton of pectoral girdle cingulum pectorale pectoral girdle scapular girdle pectoral girdle skeleton A bone that is part of a craniocervical region. head or neck bone cranial bone bone of craniocervical region A skeletal joint that is part of a appendage girdle region. girdle joint joint of girdle Musculature system of the pharyngeal and head regions. head or neck muscle head muscles head or neck muscle craniocervical region musculature A transient embryonic complex that comprises the pharyngeal arches, bulges of tissues of mesoderm and neural crest derivation through which pass nerves and pharyngeal arch arteries. The arches are separated internally by pharyngeal pouches, evaginations of foregut endoderm, and externally by pharyngeal clefts, invaginations of surface ectoderm. The development of the system ends when the stucture it contributes to are forming, which may include (depending on species) the thymus, thyroid, parathyroids, maxilla, mandible, aortic arch, cardiac outflow tract, external and middle ear[GO,modified]. embryonic pharyngeal complex pharyngeal apparatus pharyngeal system pharyngeal arch complex pharyngeal arch region pharyngeal arches and clefts pharyngeal complex pharyngeal arch system A head that is part of a embryo. embryonic head A brain that develops_from a neural tube. vertebrate brain neural tube derived brain System pertaining to blood vessels in the brain. brain vasculature cerebrovascular system intracerebral vasculature vasculature of brain Sum total of mesenchyme in the embryo. entire embryonic mesenchyme pharyngeal region pharyngeal region of foregut The axilla is the area directly under the joint where the forelimb connects to the shoulder. arm pit armpit axillary region regio axillaris armpits axilla axillae axillary region oxter underarm axilla An ectoderm that is part of a buccopharyngeal membrane. ectoderm of buccopharyngeal membrane An endoderm that is part of a buccopharyngeal membrane. endoderm of buccopharyngeal membrane A portion of mesenchymal tissue associated with an individual pharyngeal arch. branchial arch mesenchyme pharyngeal arch mesenchyme pharyngeal arch mesenchymal region Mesenchyme that is part of a developing hindgut. hindgut associated mesenchyme mesenchyme of hindgut An endoderm that is part of a anal region. anal membrane endodermal component region of trunk trunk subdivision subdivision of trunk Mesenchyme that is part of a 1st arch mandibular component. mesenchymal region of mandibular component of first pharyngeal arch mesenchyme of mandibular component mandibular component mesenchyme mandibular mesenchyme 1st arch mandibular mesenchyme A neural plate that develops_from a future forebrain. forebrain neural plate trunk and cervical paraxial mesenchyme trunk paraxial mesenchyme trunk paraxial mesoderm A nucleus of brain that is part of a telencephalon. telencephalic nucleus early telencephalic vesicle early telencephalic ventricle early telencephalic vesicle The embryonic connective tissue made up of loosely aggregated mesenchymal cells, supported by interlaminar jelly, that gives rise to the developing cardiac structures. heart mesenchyme cardiac mesenchyme An epithelium that is part of a embryonic cloaca. cloacal epithelium embryonic cloacal epithelium ALPM anterior lateral plate mesoderm Mesenchyme that is part of a developing face. face mesenchyme mesenchyme of face facial mesenchyme optic neural crest An anatomical structure that has more than one cell as a part. multicellular structure multicellular anatomical structure Mesenchyme that is part of a pharyngeal arch 1. mesenchyme of 1st arch 1st arch mesenchyme The sum total of mesenchymal tissue in the pharyngeal arch region. Pharyngeal mesenchyme is undifferentiated, loose connective tissue derived mostly from mesoderm, and also contains ectodermally derived neural crest cells. associated mesenchyme of pharyngeal region entire branchial arch associated mesenchyme pharyngeal arch associated mesenchyme entire pharyngeal arch associated mesenchyme An anatomical space with at least one opening to another space or the exterior. open anatomical space An epithelium consisting of cuboidal epithelial cells. cuboidal epithelium Mesenchyme that has the potential to develop into a dermis. future dermis A roughly circular bulge in a surface. protuberance A nuclear complex which in mammals consists of four parts, the hypothalamus, epithalamus, ventral thalamus, and dorsal thalamus[WP,modified]. thalamic complex The core globe-shaped component of the camera-type eye. bulbus oculi eye globe eyeball eye globe eyeball of camera-type eye Mesenchyme that develops_from a neural crest and is part of a 1st arch mandibular mesenchyme. 1st arch mandibular mesenchyme from neural crest Mesenchyme that develops_from a rhombencephalon neural crest. mesenchyme from rhombencephalic neural crest Mesenchyme that develops_from a neural crest and is part of a 1st arch mesenchyme. mesenchyme derived from neural crest of mesenchyme of 1st arch neural crest derived arch 1 mesenchyme pharyngeal arch 1 mesenchyme from neural crest branchial arch 1 mesenchyme from neural crest 1st arch mesenchyme from neural crest An epithelium that is part of a extraembryonic structure. extra-embryonic epithelium extraembryonic epithelium Developing anatomical structure that develops into the eyeball and associated structures. future eye immature eye An anatomical structure that develops from the neural crest. neural crest-derived structure An anatomical structure that has some part that develops from the neural crest. structure with developmental contribution from neural crest germ layer / neural crest A skeletal element that is part of a orbital region. eye skeleton ocular skeleton skeletal element of orbital region skeletal element of eye region Skeletal subdivision of the head including skull (cranium plus mandible), pharyngeal and/or hyoid apparatus. cranial skeleton osteocranium cranium cranial skeletal system Mesenchyme that develops_from a neural crest and is part of a mandibular process mesenchyme. mandibular process mesenchyme from neural crest Mesenchyme that develops_from a head mesenchyme from mesoderm and is part of a mandibular process mesenchyme. mandibular process mesenchyme from head mesenchyme Mesenchyme that develops_from a head mesenchyme from mesoderm and is part of a 1st arch mandibular mesenchyme. 1st arch mandibular mesenchyme from head mesenchyme Mesenchyme that develops_from a head mesenchyme from mesoderm and is part of a 1st arch mesenchyme. mesenchyme derived from head mesoderm of mesenchyme of 1st arch 1st arch mesenchyme from head mesenchyme Mesenchyme that develops_from a neural crest and is part of a entire pharyngeal arch associated mesenchyme. arch mesenchyme from neural crest branchial arch mesenchyme from neural crest neural crest derived arch mesenchyme pharyngeal arch mesenchyme from neural crest Mesenchyme that develops_from a head mesenchyme from mesoderm and is part of a entire pharyngeal arch associated mesenchyme. arch mesenchyme from head mesenchyme branchial arch mesenchyme from head mesenchyme head mesenchyme derived arch mesenchyme pharyngeal arch mesenchyme from head mesenchyme Epithelium composed of cells that develops from the ectoderm[FMA,modified]. ectoderm-derived epithelium ecto-epithelium The ciliary processes are formed by the inward folding of the various layers of the choroid, i.e. , the choroid proper and the lamina basalis, and are received between corresponding foldings of the suspensory ligament of the lens. ciliary processes ciliary processes set processus ciliares set of ciliary processes ciliary process processus ciliares ciliary processes An organism subdivision that includes both an appendage and its associated girdle region. Note that this includes both the skeletal elements and associated tissues (integument, muscle, etc). appendage complex appendage-girdle complex appendage/girdle complex girdle plus limb or fin limb appendage girdle complex Appendage girdle complex that when present, encompasses the pectoral appendicular skeleton and the pectoral girdle. pectoral appendage/girdle complex pectoral girdle plus anterior limb or fin pectoral girdle plus pectoral limb or fin upper limb upper limb and pectoral girdle upper limb and shoulder pectoral complex The subdivision of the skeleton of either the pectoral or pelvic girdle. skeleton of girdle girdle skeleton A bone that is part of an appendage girdle complex (i.e. any bone in a limb, fin or girdle). bone of extended limb/fin region limb bone bone of appendage girdle complex A bone that is part of a pectoral complex. Examples: scapula, manus phalanx, any carpal bone, any bone of the pectoral fin. wing bone bone of forelimb or pectoral fin or pectoral girdle forelimb bone bone of pectoral complex Anatomical cluster consisting of the skeletal elements (i.e. bone elements, cartilage elements, cartilage condensations) that are part of an individual subdivision of the organism. Excludes joints. skeletal subdivision subdivision of skeleton (in vivo) subdivision of skeleton A synovial joint that is part of a pectoral girdle region. joint of shoulder girdle pectoral girdle joint synovial joint of pectoral girdle Joint in which the articulating bones or cartilages are connected by ligaments or fibrocartilage without an intervening synovial cavity. Examples: sagittal suture, inferior tibiofibular syndesmosis, costochondral joint, pubic symphysis. solid joint nonsynovial joint Subdivision of the skeletal system which consists of the axial skeleton plus associated joints. axial skeletal system Subdivision of the skeletal system which consists of the postcranial axial skeleton plus associated joints. axial skeletal system post-cranial axial skeletal system postcranial axial skeletal system Subdivision of skull that consists of the facial bones. facial skeleton facial bone ossa facialia ossa faciei viscerocranium facial skeleton The skull can be divided into two: the neurocranium and the facial skeleton. skull subdivision subdivision of skull primary subdivision of skull A multi cell part structure that is part of a central nervous system. cell part cluster of neuraxis neuraxis layer central nervous system cell part cluster A subdivision of an anatomical system. organ system subdivision intrinsic muscle of eyeball intrinsic ocular muscle intra-ocular muscle Subdivision of the skeletal system which consists of the appendicular skeleton plus associated joints. appendicular skeletal system basal cell layer of skin outer epithelium of body embryonic skin basal layer A portion of gray matter that is part of a telencephalon. predominantly gray regional part of telencephalon gray matter of telencephalon A blood vasculature that is part of a head. cranial blood vessel set of blood vessels of head cranial blood vessels cranial blood vasculature A lymph vasculature that is part of a head. cranial lymph vessel cranial lymphatics set of lymphatic vessels of head cranial lymph vessels set of cranial lymphatic vessels cranial lymph vasculature Anatomical structure that is an aggregation of similar cells from which cartilages and bones form, and from which chondrogenesis and osteogenesis are initiated during repair and/or regeneration. (Hall and Miyake 1995). cell condensation A subdivision of the head that corresponds to the jaw skeleton, containing both soft tissue, skeleton and teeth (when present). The jaw region is divided into upper and lower regions. jaw region An epithelium that develops_from a ectoderm and is part of a oral epithelium. oral epithelium from ectoderm A major subdivision of an organism that divides an organism along its main body axis (typically anterio-posterior axis). In vertebrates, this is based on the vertebral column. axial subdivision of organism body segment main body segment subdivision of organism along main body axis A cardiovascular system that is part of a conceptus. conceptus cardiovascular system embryonic circulatory system fetal circulatory system embryonic cardiovascular system A nerve that is part of a head. cephalic nerve head nerve nerve of head region Ectodermal placode that does not develop into a component of the nervous system. non-neurogenic ectodermal placode Connective tissue, which consists of a population of connective tissue cells, the intercellular matrix of which contains an irregular network of collagen and elastic fiber bundles. Examples: areolar tissue, mucoid tissue, connective tissue of peritoneum, connective tissue of fibrous pericardium. irregular connective tissue Irregular connective tissue is an irregular connective tissue, the intercellular matrix of which contains a dense irregular network of collagen and elastic fiber bundles. Examples: connective tissue of peritoneum, connective tissue of fibrous pericardium. irregular dense connective tissue typus irregularis (textus connectivus collagenosus compactus) dense irregular connective tissue Dense connective tissue is mainly composed of collagen type I. Crowded between the collagen fibers are rows of fibroblasts, fiber-forming cells, that manufacture the fibers. Dense connective tissue forms strong, rope-like structures such as tendons and ligaments. Tendons attach skeletal muscles to bones; ligaments connect bones to bones at joints. Ligaments are more stretchy and contain more elastic fibers than tendons. Dense connective tissue also make up the lower layers of the skin (dermis), where it is arranged in sheets. dense connective tissue Irregular connective tissue, the intercellular matrix of which contains a sparse irregular network of collagen and elastic fiber bundles. Examples: areolar tissue, neuroglial tissue, mucoid tissue. textus connectivus collagenosus laxus textus connectivus laxus loose connective tissue collection of collagen fibrils The connective tissue bundles in the extracellular matrix of bone tissue that are composed of collagen, and play a role in tissue strength and elasticity. bone collagen fibril Front (ventral) portion of the vascular, pigmentary, or middle coat of the eye, including the ciliary body and the iris. Haller tunica vascula anterior part of uveal tract anterior uveal tract anterior vascular layer of the eyeball anterior vascular tunic of the eye tunica vasculosa bulbosa ventral uveal tract ciliary body and iris vasculosa oculi anterior uvea A substance that is consumed by the organism for food. ingested food A zone of skin that is part of a craniocervical region. head or neck skin An epithelium that consists of columnar epithelial cells. Columnar epithelia are epithelial cells whose heights are at least four times their width. Columnar epithelia are divided into simple (or unilayered), and the rarer stratified (or multi-layered).[WP, modified]. columnar epithelium Epithelium that derives from the mesoderm. [Automatically generated definition]. mesoderm-derived epithelium mesoepithelium meso-epithelium One of five swellings formed during the development of the face. embryonic facial process facial primordium primordium of face embryonic facial prominence A bone element that is part of a jaw region. jaw bone bone of jaw internal anal region The opening of the cloacal chamber to the outside of the organism. Birds maintain a single cloacal opening throughout their lives. cloacal opening cloacal orifice vent cloacal vent extraembryonic cavities extraembryonic cavity The collection of all skeletal elements in a pectoral complex - i.e. the combination of free limb or fin plus pectoral girdle. bones of upper limb ossa membri superioris pectoral complex skeleton set of bones of upper limb skeleton of anterior limb/fin and girdle upper limb skeleton skeleton of pectoral complex A mucosa that is part of a cloaca [Automatically generated definition]. cloaca mucosa cloaca mucosa of organ cloaca mucous membrane cloaca organ mucosa cloacal mucous membrane mucosa of cloaca mucosa of organ of cloaca mucous membrane of cloaca organ mucosa of cloaca cloacal mucosa An epithelium that is part of a cloaca. cloacal endoderm cloacal epithelium early brain vesicle primitive brain vesicle primary brain vesicle secondary brain vesicle brain vesicle future brain vesicle subdivision of tube Anatomical space that is an opening in a bone of the skull. foramen of skull cranial conduit cranial foramen foramina of the skull foramen of skull 2 An anatomical space which is the lumen of some anatomical conduit and connects two or more spaces together[FMA,modified]. foramen space anatomical conduit space A principle subdivision of an organism that includes all structures along the primary axis, typically the anterior-posterior axis, from head to tail, including structures of the body proper where present (for example, ribs), but excluding appendages. main body axis The region of the organism associated with the visceral organs. body whole body body proper Anatomical projection that is part of the integumentl system. skin projection integumentary projection An organ component layer that is part of a integumental system. layer of skin skin layer integumentary system layer Any of the organs or elements that are part of the digestive system. Examples: tongue, esophagus, spleen, crop, lunge feeding organ, tooth elements. digestive organ digestive system organ digestive system element Embryonic structure that gives rise to the telencephalon. presumptive telencephalon future telencephalon Mesenchyme that develops_from the neural crest[Automatically generated definition]. mesenchyme from neural crest neural crest derived mesenchyme neural crest mesenchyme mesenchyme derived from neural crest Subdivision of skeletal system that consists of all skeletal elements in the thoracic region of the trunk. In most vertebrates this is the rib cage and sternum. skeleton of thorax thoracic part of axial skeleton thoracic skeleton thoracic skeleton A unilaminar epithelium that develops_from a ectoderm and is part of a anal region. anal membrane ectodermal component A neuromere that is part of the presumptive forebrain. forebrain segment segment of forebrain forebrain neuromere future prosencephalon prosomere Any muscle organ that is part of a cloaca. cloacal muscle Any collection of muscles that is part of a pectoral complex. The pectoral complex comprises the pectoral girdle and the associated limb or fin. muscles of upper limb musculature of upper limb musculi membri superioris set of muscles of upper limb upper limb musculature musculature of pectoral complex A portion of tissue that will develop into vasculature. primordial vasculature An anatomical group whose component structures share a common function. non-connected functional system Any structure that is placed on one side of the left-right axis of a bilaterian. lateral structure A hollow, muscular organ, which, by contracting rhythmically, contributes to the circulation of lymph, blood or analogs. Examples: a chambered vertebrate heart; the tubular peristaltic heart of ascidians; the dorsal vessel of an insect; the lymoh heart of a reptile. heart cardiac pump heart or heart like organ circulatory vessel cardiac structure circulatory organ A basement membrane of epithelium that is part of a respiratory system. respiratory system basement membrane heart/pericardium heart plus pericardium A zone of skin that is part of a axilla. axillary skin skin of axilla axilla skin A smooth muscle tissue that is part of a hypodermis. muscle layer in fatty layer of subcutaneous tissue stratum musculosum panniculi adiposi telae subcutaneae smooth muscle layer in fatty layer of subcutaneous tissue An epithelium that is part of a camera-type eye. eye epithelium An epithelium that is part of a foregut. foregut epithelium Primordium that develops into the central nervous system. future CNS presumptive central nervous system future central nervous system Primordium that develops into the nervous system. presumptive nervous system future nervous system The part of the conceptus that may be lost before birth or will be discarded at birth, or when the embryo becomes an independent organism. extra-embryonic component extraembryonic component entire extraembryonic component An embryonic anatomical entity that will turn into one or more other anatomical entities, perhaps with other anatomical entities, later in development. transitional anatomical structure A mesenchyme-derived anatomical entity undergoing a transtion to become another structure. developing mesenchymal structure An interconnected tubular multi-tissue structure that contains fluid that is actively transported around the heart. cardiac vasculature heart vasculature genital mucosa reproductive system mucosa Any region of epithelium that is part of a skin region. skin epithelium The part of the eye that consists of both the retina and the optic choroid. chorioretina choroid and retina retinachoroid retinachoroidal region chorioretinal region gray matter of forebrain gray matter of diencephalon sensory organ epithelium A part of an organism or organ that is continuous with its surroundings and distinguished from its surroundings based on morphology. morphological feature The area of axial mesoderm that develops into the prechordal plate. prechordal mesenchyme prechordal mesoderm An multicellular anatomical structure that has subparts of multiple organs as a part. anatomical cluster multi organ part structure Material anatomical entity consisting of multiple anatomical structures that are not connected to each other. disconnected anatomical group A collection of anatomical structures that are alike in terms of their morphology or developmental origin. anatomical collection A region or zone on the surface of an organism that encompasses skin and any adnexa, down through muscles and bounded by underlying skeletal support structures. external soft tissue zone organ sector organ zonal region organ zone organ region with floating fiat boundary zone of organ Mesenchyme that is part of a developing jaw [Automatically generated definition]. jaw mesenchyme jaw epithelium The primordial mouth region of the developing head. primitive mouth primordial mouth future mouth blood vessel wall vascular wall wall of blood vessel A sweet viscid material elaborated out of the nectar of flowers in the honey sac of various bees. honey A bodily fluid consisting of the contents of the digestive tract expulsed through the anterior portion of the digestive tract. regurgitate regurgitated substance An region of the mesoderm that includes anterior lateral mesoderm of the first heart field plus contiguous pharyngeal mesoderm that gives rise to second-heart-field-derived regions of the heart and branchiomeric muscles. cardiopharyngeal field Material anatomical entity that forms the outermost boundary of an anatomical structure. anatomical surface region A transudate found in the serous sac. serous fluid serous sac fluid secretion of serous membrane cranial orifice skull orifice orifice of skull vasculature of central nervous system plus retina vasculature of central nervous system wall of lateral ventricle wall of ventricular system of brain eyeball wall wall of eyeball Wall of organ which has as its parts the endocardium, myocardium , epicardium, and the cardiac septum, surrounded by the pericardial sac proper and is continuous with the walls of the systemic and pulmonary arterial and venous trees. cardiac wall wall of heart A zone of skin that is part of the face. face skin facial skin skin of face An anatomical junction between two parts of the digestive tract. digestive tract junction Structures of the dermis, epidermis, glands and pigment cells recognizable on the external surfaces of the integument. external integument structure Dermal, epidermal, glandular and pigment structures of the external head integument. head external integument structure Dermal, epidermal, glandular and pigment structures of the body integument. body external integument structure Blood vessels in respiratory skin. vasculature of respiratory integument Anatomical projection that is composed of bone or cartilage tissue. skeletal element projection An anatomical junction between two parts of the intestine. junction of intestine intestinal junction An anatomical system that eliminates waste products that arise as a result of metabolic activity. excretory system A zone of skin that is above the clavicle zone in the pectoral girdle region. skin of clavicle region