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Ontologies▸uberon▸classes▸UBERON:0001691   
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external ear
http://purl.obolibrary.org/obo/UBERON_0001691

Part of the ear external to the tympanum (eardrum). It typically consists of a tube (the external auditory meatus) that directs sound waves on to the tympanum, and may also include the external pinna, which extends beyond the skull[GO].

Also appears inhcaopridecpontefomondo + 8
Exact Synonyms
auricular region of head
outer ear
Related Synonyms
auris externa
Broad Synonyms
auricular region
Depicted by
Gray907.png
class Information
external_definition

The external part of the organ, which consists of an outer portion (external auditory meatus) which leads to the tympanum. [Dorian_AF, Elsevier's_encyclopaedic_dictionary_of_medicine, Part_B:_Anatomy_(1988)_Amsterdam_etc.:_Elsevier][VHOG]

external_ontology_notes

in XAO this includes and is only the tympanum

has_obo_namespace

uberon

homology_notes

Some species, like Amolops tormotus (Feng et al. 2006), have a cavity in front of the tympanic membrane which is considered to be an ear canal and thus an outer ear. (...) The ancestral lineage of amphibians separated from the mammalian lineage, approximately 350 million years ago, in the paleozoic era. Many of the important developments in the auditory systems emerged after the ancestral paths separated (Manley and Clack 2003). This implies that shared features, like the tympanic middle ear, developed independently in different vertebrate lineages.[uncertain][VHOG]

never in taxon

Phocidaencbitaxon

class Relations