Vestibulocochlear nerve
Vestibulocochlear nerve is the eighth of twelve paired cranial nerves. It is responsible for transmitting sound and equilibrium (balance) information from the inner ear to the brain. The vestibulocochlear nerve is divided into two large divisions: the cochlear nerve and the vestibular nerve. The cochlear nerve carries information about hearing, and the vestibular nerve carries information about balance.
Anatomy[edit | edit source]
The vestibulocochlear nerve is composed of two distinct parts: the cochlear nerve and the vestibular nerve. The cochlear nerve arises from the spiral ganglion of the cochlea and is concerned with hearing. The vestibular nerve arises from the vestibular ganglia (Scarpa's ganglion) and is concerned with balance.
Function[edit | edit source]
The vestibulocochlear nerve carries two types of sensory information from the organs of the inner ear to the brain: auditory (sound) and vestibular (balance). The cochlear nerve carries auditory sensory information from the cochlea of the inner ear directly to the cochlear nuclei in the brainstem. The vestibular nerve carries balance sensory information from the semicircular canals, utricle, and saccule of the inner ear to the vestibular nuclei in the brainstem.
Clinical significance[edit | edit source]
Damage to the vestibulocochlear nerve can result in deafness, tinnitus, dizziness, vertigo, nausea, and loss of balance, depending on the extent and location of the damage.
See also[edit | edit source]
References[edit | edit source]
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