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Cochlea (40X)

Microimage
Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E).

The cochlear duct is an endolymph filled cavity inside the cochlea, located between the tympanic duct and the vestibular duct, separated by the basilar membrane and the vestibular membrane respectively. The cochlear duct houses the organ of Corti.

The cochlear duct is filled with endolymph, while the scala vestibuli and scala tympani contain perilymph.

Published August 5th 2022, updated May 25th 2023.