Question

question 43 (2 points)
listen
which cranial nerve provides motor innervation to the masseter muscle?
trigeminal (cn 5)
facial (cn 7)
glossopharyngeal (cn 9)
vagus (cn 10)

Explanation:

The trigeminal nerve (CN 5) has a motor component that innervates muscles of mastication, including the masseter muscle. The facial nerve (CN 7) is mainly for facial expression muscles. The glossopharyngeal (CN 9) and vagus (CN 10) nerves have functions related to the pharynx, larynx, and internal organs, not motor innervation of the masseter.

Answer:

Trigeminal (CN 5)