The Bony labyrinth or osseous labyrinth is the rigid outer wall of the inner ear. It consists of three parts: the vestibule, semicircular canals, and cochlea. These are cavities hollowed out of the substance of the bone, and lined by periosteum; they contain a clear fluid, the perilymph, in which the membranous labyrinth is situated.
This article incorporates text from a public domain edition of Gray's Anatomy.
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