Which cranial nerve is responsible for hearing and balance?

Which cranial nerve is responsible for hearing and balance?

• A. Olfactory
• B. Optic
• C. Acoustic
• D. Glossopharyngeal

Answer: (C)

Hearing and balance come from the vestibulocochlear nerve, also known as the acoustic nerve. This cranial nerve has two parts: the cochlear branch for hearing and the vestibular branch for balance and spatial orientation. It carries signals from the inner ear’s hair cells to the brainstem, letting you hear sounds and maintain your balance. The olfactory nerve handles smell, the optic nerve handles vision, and the glossopharyngeal nerve is involved in taste and swallowing, so they don’t convey hearing or balance information.

Hearing and balance come from the vestibulocochlear nerve, also known as the acoustic nerve. This cranial nerve has two parts: the cochlear branch for hearing and the vestibular branch for balance and spatial orientation. It carries signals from the inner ear’s hair cells to the brainstem, letting you hear sounds and maintain your balance. The olfactory nerve handles smell, the optic nerve handles vision, and the glossopharyngeal nerve is involved in taste and swallowing, so they don’t convey hearing or balance information.