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Bony labyrinth

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Bony labyrinth

Bony labyrinth
Lateral view of right osseous labyrinth
Interior view of right osseous labyrinth
Details
Latin Labyrinthus osseus
Anatomical terminology

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. They contain a clear fluid, the perilymph, in which the membranous labyrinth is situated.

A temporal bone fracture classification system in which temporal bone fractures are delineated based on disruption of the otic capsule has been found to be predictive for complications of temporal bone trauma such as facial nerve injury, sensorineural deafness and cerebrospinal fluid otorrhea.[1][2]

References

  1. ^ PMID 17178939 (PubMed)
  2. ^ PMID 9093676 (PubMed)

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


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