part_of
part of
develops into
developing embryonic structure
late extended germ band embryo
longitudinal visceral muscle fiber
dorsal closure embryo
visceral muscle primordium
longitudinal visceral muscle primordium
FBbt:00017008
fly_anatomy.ontology
CVM
P1 LoViMus
This primordium first becomes distinct at around stage 11 as a group of cells at the posterior tip of the visceral mesoderm (the tail end of the germ-band). During germ-band retraction these cells migrate anteriorly and split into two clusters - one on either side of the posterior midgut primordium. When these cell reach the anterior tip of the posterior midgut primordium they disperse anteriorly as two rows along the germband. Finally, during midgut closure these cells spread regularly over the underlying circular visceral muscle primordium.
longitudinal visceral mesoderm primordium
FBbt:00000108
longitudinal visceral muscle precursor
caudal visceral mesoderm