Reissner's membrane

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Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology

Reissner's membrane

Diagrammatic longitudinal section of the cochlea. (label is 'vestibular membrane')
Latin	'
Gray's	subject #232 1054
System
MeSH	[1]

Cross section of the cochlea.

Reissner's membrane 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.

Reissner's membrane is also known in literature as the vestibular membrane.

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Tympanic cavity	Labyrinthine wall/medial: Oval window · Round window • Secondary tympanic membrane • Prominence of facial canal • Promontory of tympanic cavity Membranous wall/lateral Mastoid wall/posterior: Mastoid cells • Aditus to mastoid antrum • Pyramidal eminence Carotid wall/anterior Tegmental wall/roof: Epitympanic recess Jugular wall/floor
Ossicles	Malleus (Neck of malleus, Superior ligament of malleus, Lateral ligament of malleus, Anterior ligament of malleus) · Incus (Superior ligament of incus, Posterior ligament of incus) · Stapes (Anular ligament of stapes)
Muscles	Stapedius · Tensor tympani
Eustachian tube	Bony part of pharyngotympanic tube · Cartilage of pharyngotympanic tube (Torus tubarius)