Question

Which four muscles control the movement of the lower jaw?

a) Temporalis, Masseter, Medial pterygoid, Lateral pterygoid
b) Sternocleidomastoid, Trapezius, Digastric, Stylohyoid
c) Orbicularis oculi, Zygomaticus, Orbicularis oris, Buccinator
d) Frontalis, Procerus, Nasalis, Levator labii superioris

Answer 1

The four muscles that control the movement of the lower jaw are the temporalis, masseter, medial pterygoid, and lateral pterygoid.

Step-by-step explanation:

The four muscles that control the movement of the lower jaw are the temporalis, masseter, medial pterygoid, and lateral pterygoid. The masseter muscle is the main muscle used for chewing as it elevates the mandible to close the mouth, and it is assisted by the temporalis muscle, which retracts the mandible. The medial pterygoid and lateral pterygoid muscles provide assistance in chewing and moving food within the mouth.