Membranous labyrinth

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Membranous labyrinth
The membranous labyrinth.
Latin labyrinthus membranaceus
labyrinthine artery
Gray's p.1051
TA A15.3.03.059
FMA 61022
Anatomical terminology

The membranous labyrinth is a collection of fluid filled tubes and chambers which contain the receptors for the senses of equilibrium and hearing. It is lodged within the bony labyrinth and has the same general form; it is, however, considerably smaller and is partly separated from the bony walls by a quantity of fluid, the perilymph.

In certain places, it is fixed to the walls of the cavity.

The membranous labyrinth contains fluid called endolymph. The walls of the membranous labyrinth are lined with distributions of the acoustic nerve, also known as the vestibularcochlear nerve.

Within the osseous vestibule, the membranous labyrinth does not quite preserve the form of the bony cavity, but consists of two membranous sacs, the utricle, and the saccule.

The membranous labyrinth is also the location for the receptor cells found in the inner ear.


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)