Muscles of Mastication

Question 1

Masseter muscles

Answer 1

contribute to mandible elevation

Question 2

temporal muscles

Answer 2

contribute to mandible elevation; contraction of posterior fibers of the temporal muscles retracts the mandible

Question 3

Medial/internal pterygoid muscles

Answer 3

contribute to mandible elevation

Question 4

Lateral/external pterygoid muscles

Answer 4

responsible fo rdepressing and protruding the mandible; the suprahyoid muscles assist in mandible depression.

Question 5

paired

Answer 5

all muscles of mastication of paired-there is a right and left muscle

Question 6

Innervation

Answer 6

muscles of mastication are innervated by the mandibular division of the trigeminal nerve

Question 7

Temporomandibular joint

Answer 7

A small hinge joint located at the boundary of the temporal bone and the mandible makes jaw motion in three planes of direction possible

Question 8

Superior joint of TMJ

Answer 8

connects the temporal bone with the articular disc

Question 9

Inferior joint of TMJ

Answer 9

Connects the articular disc with the mandible

Question 10

TMJ

Answer 10

involved in speech, chewing and swallowing and is susceptible to dysfunction or dislocation.