Which nerve carries auditory signals from the inner ear to the brain?

Which nerve carries auditory signals from the inner ear to the brain?

• A. Olfactory nerve
• B. Vagus nerve
• C. Glossopharyngeal nerve
• D. Hearing nerve

Answer: (D)

Auditory information travels from the inner ear specifically through the cochlear nerve, the hearing branch of the vestibulocochlear nerve (cranial nerve VIII). Hair cells in the cochlea convert sound into neural impulses that move along the cochlear nerve into the brainstem and onward to the auditory cortex. The other nerves have unrelated roles: the olfactory nerve handles smell; the vagus nerve supplies autonomic and sensory functions in the thorax and abdomen; the glossopharyngeal nerve covers taste and some throat sensation. So, the hearing nerve correctly identifies the pathway for auditory signals from the inner ear to the brain.

Auditory information travels from the inner ear specifically through the cochlear nerve, the hearing branch of the vestibulocochlear nerve (cranial nerve VIII). Hair cells in the cochlea convert sound into neural impulses that move along the cochlear nerve into the brainstem and onward to the auditory cortex. The other nerves have unrelated roles: the olfactory nerve handles smell; the vagus nerve supplies autonomic and sensory functions in the thorax and abdomen; the glossopharyngeal nerve covers taste and some throat sensation. So, the hearing nerve correctly identifies the pathway for auditory signals from the inner ear to the brain.