Muscles of Mastication

Question 1

Temporalis Origin

Answer 1

Temporal fossa and fascia

Question 2

Temporalis Insertion

Answer 2

Coronoid Process, anterior rams of mandible

Question 3

Temporalis Action

Answer 3

Elevate mandible, retract mandible, clench teeth, lateral deviation

Question 4

Temporalis Nerve

Answer 4

Trigeminal

Question 5

Temporalis Blood

Answer 5

External Carotid A

Question 6

Masseter Origin

Answer 6

Zygomatic Arch

Question 7

Masseter Insertion

Answer 7

Ramus and angle of mandible, coronoid process

Question 8

Masseter action

Answer 8

elevate mandible, protrude, clench teeth

Question 9

Masseter Nerve

Answer 9

Trigeminal

Question 10

Masseter Blood

Answer 10

External Carotid A

Question 11

Medial Pterygoid Origin

Answer 11

Medial lateral pterygoid plate, pyramidal palatine bone, maxilla tuberosity

Question 12

Medial Pterygoid Insertion

Answer 12

mandible angle and ramus

Question 13

Medial Pterygoid Action

Answer 13

Elevate mandible, clench teeth, protrude mandible, laterally deviate for chewing

Question 14

Medial Pterygoid Nerve

Answer 14

Trigeminal

Question 15

Medial Pterygoid Blood

Answer 15

External Carotid A

Question 16

Lateral Pterygoid Origin

Answer 16

Upper- Greater wing of Sphenoid

Lower- Lateral pterygoid plate

Question 17

Lateral Pterygoid Insertion

Answer 17

Mandibular condyle, joint capsule and disc

Question 18

Lateral Pterygoid Action

Answer 18

Protrude mandible (lower), pull disc anteriorly, laterally deviate mandible, pulls forward on mandible (first part of opening mouth)

Question 19

Lateral Pterygoid Nerve

Answer 19

Trigeminal N

Question 20

Lateral Pterygoid Blood

Answer 20

External Carotid A