cochlear duct

noun
variants: also cochlear canal

Medical Definition of cochlear duct 

: the spirally arranged canal in the bony canal of the cochlea that contains the organ of Corti, is triangular in cross section, and is bounded by the vestibular membrane above, by the periosteum-lined wall of the cochlea laterally, and by the basilar membrane below

called also ductus cochlearis, scala media

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