7 Muscles Of The Jaw

Question 0

Insertion of the temporalis m?

Answer 0

Coronoid process of the mandible.

Question 1

Origin of the temporalis m?

Answer 1

Temporal bone

Question 2

What nerve innervates the temporalis m?

Answer 2

CN V (Trigeminal)

Question 3

Which muscle and nerve are the exceptions to the generalization that all jaw muscles are innervated by CN V (Trigeminal)?

Answer 3

Geniohyoid m. And it’s innervated by CN XII (Hypoglossal).

Question 4

Action of the temporalis m?

Answer 4

Elevate jaw

Question 5

Origin of the masseter m?

Answer 5

Zygomatic arch

Question 6

Insertion of masseter m?

Answer 6

Angle and ramus of mandible.

Question 7

Innervation of masseter m?

Answer 7

CN V (Trigeminal)

Question 8

Action of masseter m?

Answer 8

Elevate jaw

Question 9

Origin of medial pterygoid m?

Answer 9

Medial surface of lateral pterygoid plate.

Question 10

Insertion of medial pterygoid m?

Answer 10

Medial surface of angle of mandible

Question 11

Innervation of medial pterygoid m?

Answer 11

CN V (Trigeminal)

Question 12

Action of medial pterygoid m?

Answer 12

Elevate jaw

Question 13

Origin of lateral pterygoid m?

Answer 13

Lateral surface of lateral pterygoid plate

Question 14

Insertion of lateral pterygoid m?

Answer 14

Condylar process of mandible

Question 15

Innervation of lateral pterygoid m?

Answer 15

CN V (Trigeminal)

Question 16

Actions of lateral pterygoid m?

Answer 16

1) protrude jaw (bilaterally)

2) move jaw laterally (unilaterally)

Question 17

If the mandible is anchored, what structure will the suprahyoid muscles move?

Answer 17

The larynx

Question 18

If the larynx is anchored, what structure will the suprahyoid muscles move?

Answer 18

The mandible

Question 19

Origin of the anterior belly of the digastric m?

Answer 19

Symphesis of mandible

Question 20

Insertion of anterior belly of digastric m?

Answer 20

Hyoid bone

Question 21

Innervation of anterior belly of digastric m?

Answer 21

CN V (Trigeminal)

Question 22

Action of anterior belly of digastric m when larynx is anchored?

Answer 22

Depress jaw

Question 23

Origin of mylohyoid m?

Answer 23

Mylohyoid groove of mandible

Question 24

Insertion of mylohyoid m?

Answer 24

Hyoid bone

Question 25

Innervation of mylohyoid m?

Answer 25

CN V (Trigeminal)

Question 26

Action of mylohyoid m when larynx is anchored?

Answer 26

Depress jaw

Question 27

Origin of geniohyoid m?

Answer 27

Symphesis of mandible

Question 28

Insertion of geniohyoid m?

Answer 28

Hyoid bone

Question 29

Innervation of geniohyoid m?

Answer 29

CN XII (Hypoglossal)

Question 30

Action of geniohyoid m when larynx is anchored?

Answer 30

Depress jaw

Question 31

Where is the geniohyoid m in relation to the mylohyoid m?

Answer 31

The geniohyoid m is deep and superior to the mylohyoid m.