Which of the following muscles acts as a synergist to masseter and closes the jaw?
A) buccinator
B) zygomaticus
C) frontalis
D) sternocleidomastoid
E) temporalis

Question

Quizplus · Accepted Answer

The temporalis muscle acts as a synergist to the masseter muscle to close the jaw. The buccinator muscle helps in mastication but not in jaw closure. The zygomaticus muscle helps in smiling. The frontalis muscle helps with raising the eyebrows. The sternocleidomastoid muscle helps with neck and head movement.

Which of the Following Muscles Acts as a Synergist to Masseter