Muscles Of Mastication

Question 0

Masseter m

Answer 0

Origin: zygomatic arch
Insertion: lateral surface of angle of mandible
Action: closes mandible

Question 1

Temporalis m

Answer 1

Origin: temporal fossa
Insertion: coronoid process of mandible
Action: closes and retracts mandible

Question 2

Lateral pterygoid m

Answer 2

Origin: lateral side of the lateral pterygoid plate
Insertion: the condyle of mandible
Action: opens the mandible and moves it to the side

Question 3

Medial pterygoid m

Answer 3

Origin: medial side of the lateral pterygoid plate
Insertion: medial surface of the angle of mandible
Action: closes the mandible