An epithelial sac of invaginated ectoderm formed from the otic placode that gives rise to the structures of the inner ear[MP] [ MP:0009806 ]

Synonyms: otic vesicle

This is just here as a test because I lose it

Term information


pheno_slim, vertebrate_core

depicted by

external definition

Epithelial sac present beside the fifth rhombomere; forms the semicircular canals dorsally and the otolith organs ventrally, and houses the acoustico-vestibular sensory epithelia (maculae) of hair cells. Kimmel et al, 1995. (Also see Anatomical Atlas entry for ear by T. Whitfield.)[TAO]

One of the paired sacs of invaginated ectoderm that develop into the membranous labyrinth of the internal ear. [Biology_online][VHOG]

external ontology notes

MP defines as epithelial sac, but EHDAA defines as multi-tissue; See

has alternative id


has related synonym


auditory vesicle


acoustic vesicle

homology notes

The inner ear develops embryonically in all vertebrates as an invagination of the ectodermal otic placode to form an otic vesicle.[well established][VHOG]