ANATOMY

Detailed explanation-1: -The cochlear duct is part of the cochlea. It is separated from the tympanic duct (scala tympani) by the basilar membrane. It is separated from the vestibular duct (scala vestibuli) by the vestibular membrane (Reissner’s membrane). The stria vascularis is located in the wall of the cochlear duct.

Detailed explanation-2: -The cochlear duct is separated from the scala vestibuli by the vestibular membrane (also known as Reissner’s membrane) and the scala tympani by the basilar membrane.

Detailed explanation-3: -The cochlear duct is subdivided into three compartments (scala vestibuli, scala media, and scala tympani) by two membranes: the basilar membrane, which separates scala tympani from scala media, and Reissner’s membrane, which separates scala media from scala vestibuli.

Detailed explanation-4: -Reissner’s membrane (vestibular membrane) is a membrane inside the cochlea of the inner ear. It separates scala media from scala vestibuli.