The dorsal portion of the embryonic first endodermal pharyngeal pouch; it develops into the middle ear cavity. [ https://www.worldcat.org/search?q=bn%3A0124020607 VHOG:0001297 ]
Term information
- VHOG:0001297
- MA:0001218
- NCIT:C34318
- EHDAA:6772
- EHDAA2:0004115
- SCTID:361516008
- EMAPA:17002
- UMLS:C1284046 (ncithesaurus:Tubotympanic_Recess)
The tympanic cavity and auditory tube of an amniote develop from the first embryonic pharyngeal pouch, so they are homologous to the first gill pouch, or spiracle, of a fish. We are uncertain whether this homology strictly applies to the middle ear cavity and auditory tube of lissamphibians, which show certain peculiarities in their development.[well established][VHOG]