GROSS ANATOMY

Detailed explanation-1: -The vestibulocochlear nerve or auditory vestibular nerve, also known as the eighth cranial nerve, cranial nerve VIII, or simply CN VIII, is a cranial nerve that transmits sound and equilibrium (balance) information from the inner ear to the brain.

Detailed explanation-2: -vestibulocochlear nerve: Also known as the auditory vestibular nerve, this is the eighth of twelve cranial nerves, and it is responsible for transmitting sound and equilibrium (balance) information from the inner ear to the brain.

Detailed explanation-3: -Cranial nerve VIII brings sound and information about one’s position and movement in space into the brain. The auditory and vestibular systems subserve several functions basic to clinical medicine and to psychiatry.

Detailed explanation-4: -The vestibulocochlear nerve consists of the vestibular and cochlear nerves, also known as cranial nerve eight (CN VIII). Each nerve has distinct nuclei within the brainstem. The vestibular nerve is primarily responsible for maintaining body balance and eye movements, while the cochlear nerve is responsible for hearing.

Detailed explanation-5: -CN VIII runs past the CPA and enters the brainstem at the pontomedullary junction. The vestibular nerve separates from the cochlear nerve before reaching the vestibular nuclear complex. The vestibular nuclear complex consists of four nuclei: medial, lateral, superior, and inferior.