Vestibular membrane
| Vestibular membrane | |
|---|---|
 Diagrammatic longitudinal section of the cochlea. (label is 'vestibular membrane') | |
 Cross section of the cochlea. | |
| Details | |
| Identifiers | |
| Latin | paries vestibularis ductus cochlearis |
| Anatomical terminology | |
Reissner's membrane (vestibular membrane, vestibular wall) is 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 perilymph, which is important for the function of the organ of Corti.
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.
Additional images
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Floor of ductus cochlearis.
