Muscles of Mastication

Question 1

Temporalis Origin (3)

Answer 1

Inferior Temporal Line
Temporal Fossa
Temporal Fascia

Question 2

Temporalis Insertion (2)

Answer 2

Coronoid Process
Anterior border of ramus

Question 3

Temporalis Action V, O, H,

Answer 3

V: elevate mandible
O, H: retract mandible

Question 4

Lateral Pterygoid Muscle Superior Origin

Answer 4

Greater Wing (Lateral infratemporal surface)

Question 5

Lateral pterygoid Muscle Superior Insertion

Answer 5

Articular Disc

Question 6

Lateral Pterygoid muscle Inferior Origin

Answer 6

Lateral pterygoid plate

Question 7

Lateral Pterygoid Muscle Inferior Insertion

Answer 7

Condyle of mandible

Question 8

Lateral pterygoid Muscle Action

Answer 8

Protract Mandible
Depress Mandible

Question 9

Medial Pterygoid muscle Deep Origin

Answer 9

Pterygoid fossa/ med surface of lateral plate and lateral surface of medial plate

Question 10

Medial pterygoid muscle Superficial Origin

Answer 10

Maxillary tuberosity

Question 11

Medial pterygoid muscle deep and superficial insertion

Answer 11

Ramus and angle of mandible ( contributes to the masseteric sling

Question 12

Medial pterygoid action

Answer 12

protrude and elevate mandible

Question 13

Masseter superficial origin

Answer 13

anterior 2/3 of zygomatic arch

Question 14

masseter deep origin

Answer 14

posterior 1/3 of zygomatic arch

Question 15

masseter superficial insertion

Answer 15

angle and ramus of mandible

Question 16

masseter deep insertion

Answer 16

ramus and coronoid process of mandible

Question 17

medial pterygoid actions

Answer 17

elevate and protrude mandible (protrusion only done by superficial head