Muscles Closing the Mouth and Muscles Protrusion/Retrusion

Question 1

Temporalis
(Origin)

Answer 1

Origin: Lateral Skull / Temporal Fossa

Question 2

Temporalis
(Insertion)

Answer 2

Insertion: Coronoid, Medial Surface of Ramus

Question 3

Temporalis
(Action)

Answer 3

Action: Elevate Mandible

Question 4

Temporalis
(Innervation)

Answer 4

Innervation: Mandibular branch of CN V

Question 5

Masseter
(Origin)

Answer 5

Origin: Zygomatic Bone and Arch

Question 6

Masseter
(Insertion)

Answer 6

Insertion: Lateral Surface of Ramus and Angle of Mandible

Question 7

Masseter
(Action)

Answer 7

Action: Elevate Mandible

Question 8

Masseter
(Innervation)

Answer 8

Innervation: Mandibular Branch of CN V

Question 9

Medial Pterygoid
(Origin)

Answer 9

Origin: Medial Surface of Lateral Pterygoid Plate

Question 10

Medial Pterygoid
(Insertion)

Answer 10

Insertion: Medial Surface of Ramus and Angle

Question 11

Medial Pterygoid
(Action)

Answer 11

Action: Elevate Mandible

Question 12

Medial Pterygoid
(Innervation)

Answer 12

Innervation: Mandibular Branch of CN V

Question 13

Lateral Pterygoid Superior
(Origin)

Answer 13

Origin: Greater Wing of Sphenoid

Question 14

Lateral Pterygoid Superior
(Insertion)

Answer 14

Insertion: TMJ Capsule and Disc

Question 15

Lateral Pterygoid Superior
( Action)

Answer 15

Action: Retrusion (Stabilizes Disc)

Question 16

Lateral Pterygoid Superior
(Innervation)

Answer 16

Innervation: Mandibular Branch of CN V

Question 17

Lateral Pterygoid Inferior
(Origin)

Answer 17

Origin: Lateral Surface of Lateral Pterygoid Plate

Question 18

Lateral Pterygoid Inferior
(Insertion)

Answer 18

Insertion: Mandibular Neck, Just Inferior to Condyle

Question 19

Lateral Pterygoid Inferior
(Action)

Answer 19

Action: Protrusion

Question 20

Lateral Pterygoid Inferior
(Innervation)

Answer 20

Innervation: Mandibular Branch of CN V