Diagrammatic longitudinal section of the cochlea.
Cross section of the cochlea.
|Latin||membrana vestibularis ductus cochlearis|
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The vestibular membrane, vestibular wall or Reissner's membrane (English: //), is a membrane inside the cochlea of the inner ear. It separates the cochlear duct from the vestibular 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 primarily functions as a diffusion barrier, allowing nutrients to travel from the perilymph to the endolymph of the membranous labyrinth.