What nerve carries equilibrium information?
The vestibulocochlear nerve (auditory vestibular nerve), known as the eighth cranial nerve, transmits sound and equilibrium (balance) information from the inner ear to the brain.
What happens when the vestibulocochlear nerve is damaged?
The vestibulocochlear nerve sends balance and head position information from the inner ear (see left box) to the brain. When the nerve becomes swollen (right box), the brain can’t interpret the information correctly. This results in a person experiencing such symptoms as dizziness and vertigo.
What type of nerve is the vagus nerve?
vagus nerve, also called X cranial nerve or 10th cranial nerve, longest and most complex of the cranial nerves. The vagus nerve runs from the brain through the face and thorax to the abdomen. It is a mixed nerve that contains parasympathetic fibres.
What type of information does each branch of the vestibulocochlear nerve carry?
The vestibulocochlear nerve (also known as the auditory vestibular nerve and cranial nerve VIII) has axons that carry the modalities of hearing and equilibrium. It consists of the cochlear nerve that carries information about hearing, and the vestibular nerve that carries information about balance.
Is the Vestibulocochlear nerve myelinated?
They become myelinated very near the brain stem and are distinguishable from the eighth nerve as discrete and separate peripheral nerves. In contrast, myelination of the vestibular and cochlear fibers occurs inside the internal audi tory canal.
Is auditory nerve myelinated?
Cochlear nerve myelination is essential to peripheral auditory system function.
What does the vestibulocochlear nerve innervate?
The vestibulocochlear nerve (CN VIII) is the eighth cranial nerve and has two roles: innervation to the cochlea for hearing. innervation to the vestibule for acceleration and balance senses.
Where is vestibulocochlear nerve located?
internal auditory meatus
The vestibulocochlear nerve is located in the internal auditory meatus (internal auditory canal). The nerve is responsible for equilibrium and hearing. Conditions of the vestibulocochlear nerve include vestibular neuritis, labyrinthitis, and acoustic neuroma.
Can vestibular nerve damage be repaired?
The body has limited ability to repair damage to the vestibular organs, although the body can often recover from vestibular injury by having the part of the brain that controls balance recalibrate itself to compensate.
