RadsMD
Ossicles
Bony Labyrinth
 
Semicircular Canals
Cochlea
Vestibular Aqueduct

Cochlear Aqueduct

Facial Nerve
Axial CT atlas
Coronal CT atlas
The Bony Labyrinth
The bony labyrinth is located within the inner ear and contains the membranous labyrinth, or functional sensory epithelium.

Parts of the bony labyrinth include the vestibule, semicircular canals, cochlea, vestibular aqueduct, and medial cochlear aqueduct.
 
Vestibule
The vestibule* is the central cavity of the vestibular system, responsible for balance. It contains the otoliths that sense linear movement: the utricle* (horizontal movement), and the saccule* (sagittal/up-down movement).
Axial CT image of the vestibule
Coronal CT image of the vestibule
 
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