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Chapter: Medicine and surgery: Nervous system

Vestibulocochlear nerve (VIII) lesion - Disorders of cranial nerves

The VIIIth nerve carries sensory information from the cochlear and vestibular apparatus.

Vestibulocochlear nerve (VIII) lesion

 

Anatomy

 

The VIIIth nerve carries sensory information from the cochlear and vestibular apparatus. The auditory fibres arise from the cochlea and pass to the pontine auditory nucleus. These then project to the temporal lobes. The vestibular nerves arise from the semicircular canals and pass to the vestibular nuclei in the pons, and the cerebellum.

 

Function

 

Hearing (cochlear nerve) and movement/position of head in space, for balance and head–eye coordination (vestibular nerve).

 

Specific causes

 

Meni´ere’s` disease, acoustic neuroma, lead, aminoglycosides, furosemide, Paget’s disease, herpes zoster.

 

Clinical features

 

Sensorineural deafness, tinnitus, vertigo, nystagmus.

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Medicine and surgery: Nervous system : Vestibulocochlear nerve (VIII) lesion - Disorders of cranial nerves |

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Medicine and surgery: Nervous system


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