Face Muscles

Question 1

Muscles of mastication

Answer 1

1) . Temporalis
2) . Masseter
3) . Lateral pterygoid
4) . Medial pterygoid

Question 2

what innervates all of the muscles of mastication?

Answer 2

trigeminal nerve

Question 3

Temporalis prox attachment

Answer 3

floor of temporal fossa, deep surface of temporal fascia

Question 4

Temporalis distal attachment

Answer 4

coronoid process of mandible

Question 5

Temporalis innervation

Answer 5

Trigeminal (V3)

Question 6

Temporalis action

Answer 6

1) . elevate mandible
2) . close jaw post
3) . horizontal fibers retract jaw

Question 7

Masseter prox attachment

Answer 7

zygomatic bone and zygomatic arch

Question 8

Masseter distal attachment

Answer 8

lateral surface of ramus of mandible

Question 9

Masseter innervation

Answer 9

Trigeminal (V3)

Question 10

Masseter action

Answer 10

1) . elevate mandible
2) . minimal protrusion of manidble

Question 11

Lateral pterygoid prox attachment

Answer 11

1) . crest of greater wing of sphenoid
2) . lateral pterygoid plate

Question 12

Lateral pterygoid distal attachment

Answer 12

S: TMJ joint capsule

I: mandible

Question 13

Lateral pterygoid innervation

Answer 13

Trigeminal (V3)

Question 14

Lateral pterygoid action

Answer 14

Bi: protract mandible, depress chin

Uni: swings jaw toward contralateral side

Question 15

Medial pterygoid prox attachment

Answer 15

1) . medial surface of lateral pterygoid plate
2) . tuberosity of maxilla

Question 16

Medial pterygoid distal attachment

Answer 16

medial surface of ramus of mandible, inf to mandibular foramen

Question 17

Medial pterygoid innervation

Answer 17

Trigeminal (V3)

Question 18

Medial pterygoid action

Answer 18

1) . synergistic to masseter in mandibular elevation
2) . protrusion
3) . uni move produces small grinding movements

Question 19

how many muscles of the scalp contribute to facial movement?

Answer 19

2

Question 20

what 2 muscles of the scalp contribute to facial movement?

Answer 20

1) . Occipitofrontalis,
2) . Epicranial aponeurosis

Question 21

how many muscles of the mouth, lips, and cheek contribute to facial expression?

Answer 21

9

Question 22

What muscles of the mouth, lips, and cheeks contribute to facial expression?

Answer 22

1) . Orbicularis oris
2) . Buccinator
3) . Depressor anguli oris
4) . Levator anguli oris
5) . Depressor labii inferioris
6) . levator labii superioris
7) . Zygomaticus major
8) . Zygomaticus minor
9) . Platysma

Question 23

orbital and nasal opening muscles

Answer 23

1) . Orbicularis Oculi
2) . Nasalis

Question 24

What innervates all the muscles of facial expression?

Answer 24

CN 7 (facial nerve)

Question 25

what facial muscle is responsible for frowning?

Answer 25

depressor anguli oris

Question 26

what facial muscle is responsible for smiling?

Answer 26

Zygomaticus Major

Question 27

what facial muscle allows you to grin/grimmace?

Answer 27

Levator anguli oris

Question 28

what muscle closes the mouth?

Answer 28

Orbicularis oris

Question 29

what is the function/role of the Buccinator?

Answer 29

synergist with the tongue to form a bolus

Question 30

what facial muscle allows a pouty expression?

Answer 30

Depressor labii inferioris

Question 31

what eye muscle is responsible for a soft close of the eye lids?

Answer 31

Orbicularis Occuli (Palpebral)

Question 32

what eye muscle is responsible for a hard close?

Answer 32

Orbicularis Occuli (Orbital)