part of part of adjacent to adjacent to membrane organ cochlear duct of membranous labyrinth scala vestibuli vestibular membrane of cochlear duct http://upload.wikimedia.org/wikipedia/commons/0/0c/Cochlea-crosssection.png FMA:77829 Wikipedia:Reissner's_membrane Reissner's membrane vestibular membrane superior wall of cochlear duct A membrane inside the cochlea of the inner ear. It separates scala media from scala vestibuli. Together with the basilar membrane it creates a compartment in the cochlea filled with endolymph, which is important for the function of the organ of Corti. It primarily functions as a diffusion barrier, allowing nutrients to travel from the perilymph to the endolymph of the membranous labyrinth. Histologically, the membrane is composed of two layers of flattened epithelium, separated by a basal lamina. Its structure suggests that its function is transport of fluid and electrolytes. UBERON:0002281 paries vestibularis ductus cochlearis vestibular membrane of Reissner EMAPA:35922 MA:0001200 SCTID:362575002 Reissner membrane membrana vestibularis ductus cochlearis vestibular wall of cochlear duct vestibular membrane NCIT:C33083 scala media