<prompt> Organ of coi is situated in ?Basilar membraneUtricleSacculeNone of the above  <response>: Scala media cochlear duct or membranous labyrinth has 3 walls : -i The basilar membrane, which suppos the organ of coi.ii The Reissners membrane which separates it from the scala vestibuli.iii The stria vascularis which contains vascular epithelium and is concerned with secretion of endolymph. 