bony labyrinth

bon·y lab·y·rinth

[TA]

a series of cavities (for example, cochlea, vestibule, and semicircular canals) contained within the otic capsule of the petrous portion of the temporal bone; the bony labyrinth is filled with perilymph, in which the delicate, endolymph-filled membranous labyrinth is suspended.
See also: otic capsule.

Synonym(s): labyrinthus osseus [TA], osseous labyrinth

bony labyrinth

a series of bony cavities in the inner ear. See also membranous labyrinth.

bony labyrinth

The bone encasement of the inner ear which is filled with perilymph and contains 3 cavities:
(1) The cochlea, which houses the sensory part of the auditory system;
(2) The semicircular canals, which are sensitive to rotational movement;
(3) The vestibule, which contains the sacculus and utriculus, which are sensitive to linear movement.

bon·y lab·y·rinth

(bō'nē lab'i-rinth)

A series of cavities (cochlea, vestibule, and semicircular canals) contained within the otic capsule of the petrous portion of the temporal bone; the bony labyrinth is filled with perilymph, in which the delicate, endolymph-filled membranous labyrinth is suspended.

bon·y lab·y·rinth

(bō'nē lab'i-rinth)

Series of cavities (e.g., cochlea, vestibule, and semicircular canals) contained within otic capsule of petrous portion of the temporal bone; filled with perilymph, in which the delicate, endolymph-filled membranous labyrinth is suspended.

labyrinth

the system of interconnecting cavities or canals of the internal ear, consisting of the vestibule, cochlea and semicircular canals.

The cochlea is concerned with hearing, and the vestibule and semicircular canals with equilibrium (sense of balance).

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bony labyrinth

the bony or osseous labyrinth is composed of a series of canals tunneled out of the temporal bone.

ethmoid labyrinth, ethmoidal labyrinth

either of the paired lateral masses of the ethmoid bone, consisting of numerous thin-walled cellular cavities, the ethmoidal cells.

membranous labyrinth

inside the osseous labyrinth is the membranous labyrinth, which conforms to the general shape of the osseous labyrinth but is smaller. A fluid called perilymph fills the space between the osseous and membranous labyrinths. Fluid inside the membranous labyrinth is called endolymph. These fluids play an important role in the transmission of sound waves and the maintenance of body balance.

osseous labyrinth

a complex excavation in the petrous part of the temporal bone which houses the membranous labyrinth.