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Cranial Nerve VIII - Vestibulocochlear Nerve

Last Updated: Jun 24, 2015

The vestibulocochlear nerves, cranial nerve VIII, are the eighth pair of cranial nerves and are numbered with the Roman numeral VIII. They are sensory nerves that run from the brain stem between the base of the brain (pons) and the spinal cord in an area known as the medulla oblongata. Each of these nerves has two parts: (1) the vestibular branch, which is located in ganglia near the vestibule and Continue Scrolling To Read More Below...

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Continued From Above... semicircular canals of the inner ear. The nerves in this region are sensitive to changes in the position of the head, and the impulses they initiate are passed into the brain as reflexes to assist in maintaining balance. (2) The cochlear branch fibers are located in the ganglion of the cochlea, the part of the inner ear that houses the hearing receptors. Nerve impulses from this region pass through the pons into the temporal lobe of the brain for interpretation.