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The bony labyrinth (also osseous labyrinth or otic capsule) is the rigid, bony outer wall of the inner ear in the temporal bone. 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.
In mammals, it consists of the bony labyrinth, a hollow cavity in the temporal bone of the skull with a system of passages comprising two main functional parts: [2] The cochlea, dedicated to hearing; converting sound pressure patterns from the outer ear into electrochemical impulses which are passed on to the brain via the auditory nerve.
The orifice of the vestibular aqueduct is the hind part of the medial wall; it extends to the posterior surface of the petrous portion of the temporal bone. It transmits a small vein and contains a tubular prolongation of the membranous labyrinth , the endolymphatic duct , which ends in a cul-de-sac between the layers of the dura mater within ...
The cochlea is a spiral shell-shaped organ responsible for the sense of hearing. These structures together create the membranous labyrinth. [12] The bony labyrinth refers to the bony compartment which contains the membranous labyrinth, contained within the temporal bone.
Bone Anchored hearing aids are often prescribed for patients with conductive hearing loss. Dr. Amy Sarow breaks down what you need to know.
Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of the inner ear in most mammals. As movements consist of rotations and translations, the vestibular system comprises two components: the semicircular canals, which indicate rotational movements; and the otoliths, which indicate linear accelerations.