The cochlear duct (or scala media) is an endolymph filled cavity inside the cochlea, located between the tympanic duct and the vestibular duct, separated by the basilar membrane and Reissner's membrane (the vestibular membrane) respectively.
Inner ear, with Cochlear Duct labeled near bottom.
Diagrammatic longitudinal section of the cochlea. (visible at far right under latin name ductus cochlearis)
|FMA||79789 61119, 79789|
The cochlear duct houses the organ of Corti.
- Cross section at avatar.com.au