Figure 2422

Diagram illustrating the innervation of the sensory regions of the membranous labyrinth. Note the two parts of the vestibulocochlear nerve. The cochlear nerve carries the hearing impulses from the cochlear duct; the vestibular nerve carries balance information from the semicircular canals. The cell bodies of these sensory fibers are located in the spiral ganglion (for hearing) and vestibular ganglion (for equilibrium). (Modified from Hawke M, Keene M, Alberti PW. Clinical Otoscopy: A Text and Colour Atlas. Edinburgh: Churchill Livingstone, 1984.)

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