Which cranial nerve is numbered VIII?

Which cranial nerve is numbered VIII?

• A. Vestibulocochlear nerve (VIII)
• B. Oculomotor nerve (III)
• C. Trigeminal nerve (V)
• D. Accessary nerve (XI)

Answer: (A)

The main idea here is knowing what each cranial nerve does and how it’s named. The nerve that handles hearing and balance is the vestibulocochlear nerve, reflecting its two roles: cochlear for hearing and vestibular for balance. It’s largely a sensory pathway, carrying auditory and vestibular information from the inner ear up to the brainstem. The other nerves listed have different primary duties: the oculomotor nerve moves most eye muscles and constricts the pupil, the trigeminal nerve provides facial sensation and motor to the jaw muscles, and the accessory nerve supplies certain neck muscles. So, for functions related to hearing and balance, the vestibulocochlear nerve is the correct match.

The main idea here is knowing what each cranial nerve does and how it’s named. The nerve that handles hearing and balance is the vestibulocochlear nerve, reflecting its two roles: cochlear for hearing and vestibular for balance. It’s largely a sensory pathway, carrying auditory and vestibular information from the inner ear up to the brainstem. The other nerves listed have different primary duties: the oculomotor nerve moves most eye muscles and constricts the pupil, the trigeminal nerve provides facial sensation and motor to the jaw muscles, and the accessory nerve supplies certain neck muscles. So, for functions related to hearing and balance, the vestibulocochlear nerve is the correct match.