Both the muscles of mastication and the muscles of facial expression are innervated by the fifth cranial nerve. The muscles of mastication arise from the first pharyngeal arch and the muscles of facial expression arise from the fifth cranial arch.
A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question

Quizplus · Accepted Answer

The muscles of mastication are innervated by the fifth cranial nerve whereas the seventh cranial nerve innervates the muscles of facial expression. The muscles of mastication arise from the first pharyngeal arch; the facial muscles arise from the second arch.

Both the Muscles of Mastication and the Muscles of Facial