You searched for: “acoustic nerve
acoustic nerve (s) (noun), acoustic nerves (pl)
A nerve which consists of two separate parts of the eighth pair of cranial nerves connecting the inner ear with the brain and transmitting impulses concerned with hearing and balance: "The acoustic nerve controls the special senses of hearing and equilibrium or balance."

The acoustic nerve consists of the cochlear nerve which carries sensory impulses from the cochlea (the snail-shaped part of the inner ear for detecting sound) to the hearing center in the brain, where the impulses are interpreted as sounds; and the second part of the acoustic nerve consists of a vestibular nerve that carries sensory impulses from the semicircular canals in the inner ear to the cerebellum in the brain, which in conjunction with information from the eyes and joints, controls the balance of the body.

—Compiled from information located in
The American Medical Association Home Medical Encyclopedia;
Medical Editor, Charles B. Clayman, MD; Random House;
New York; 1989; pages 286 & 1089.