Vestibular membrane
The vestibular membrane, vestibular wall or Reissner's membrane, is a membrane inside the cochlea of the inner ear. It separates the cochlear duct from the vestibular duct. It helps to transmit vibrations from fluid in the vestibular duct to the cochlear duct. Together with the basilar membrane, it creates a compartment in the cochlea filled with endolymph, which is important for the function of the spiral organ of Corti. It allows nutrients to travel from the perilymph to the endolymph of the membranous labyrinth. It may be damaged in Ménière's disease. It is named after the German anatomist Ernst Reissner.
| Vestibular membrane | |
|---|---|
Cross-section of the cochlea showing the position of the vestibular membrane. | |
Cross-section of the cochlea at higher magnification showing the membrane (here labelled "Reissner's membrane") | |
| Details | |
| Pronunciation | English: /ˈraɪsnər/ |
| System | Inner ear |
| Location | Cochlea of the inner ear |
| Identifiers | |
| Latin | membrana vestibularis ductus cochlearis |
| Anatomical terminology | |
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