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Medical Definition of Transverse crest of internal acoustic meatus
1. A horizontal ridge that divides the fundus of the internal acoustic meatus into a superior and an inferior area. In the former are the introitus of the facial canal and openings for the branches of the vestibular nerve to the utricle and to the ampullae of the anterior and lateral semicircular canals. In the latter are openings for the cochlear nerve, and for branches of the vestibular nerve to the saccule and to the ampulla of the posterior semicircular canal. Synonym: crista transversa, falciform crest, transverse crest. (05 Mar 2000)
Lexicographical Neighbors of Transverse Crest Of Internal Acoustic Meatus
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