Question

4 of 18 concepts completed multiple choice question the muscle indicated by the letter a in the picture is the o temporalis muscle o orbicularis oris muscle o medial pterygoid muscle o masseter muscle

Explanation:

The masseter muscle is a prominent muscle of mastication located on the side of the lower - face, which is consistent with the location of the muscle labeled A in the image. The temporalis muscle is on the side of the head above the masseter, the orbicularis oris is around the mouth, and the medial pterygoid is located deeper in the jaw area.

Answer:

D. masseter muscle