Actions of Face Muscles Flashcards
1
Q
A
2
Q
action of masseter
A
- closes jaw by elevating mandible
3
Q
action of temporalis
A
- closes jaw by elevating and retracting mandible
4
Q
action of medial pterygoid
A
- protract mandible
- produce side to side (grinding) movements
5
Q
action of the genioglossus
A
- protraction of the tongue
6
Q
action of hyoglossus
A
- depresses tongue
7
Q
action of styloglossus
A
- retracts and elevates tongue
8
Q
action of corrugator supercilli
A
- draws eyebrows medially and inferiorly
9
Q
action of orbicularis oculi
A
- closes eye (blinking, squinting)
- draws eyebrows inferiorly
10
Q
action of zygomaticus
A
- raises lateral corners of mouth (smiling)
11
Q
action of orbicularis oris
A
- closes lips (kissing and whistling)
12
Q
action of mentalis
A
- wrinkles chin
13
Q
action of platysma
A
- tenses skin of neck
- depresses mandible
14
Q
action of risorius
A
- draws corner of lip laterally
15
Q
action of levator labii superioris
A
- elevates the upper lip
- opens lips
16
Q
action of depressor labii inferioris
A
- depresses lower lip (i.e pout)
17
Q
action of depressor anguli oris
A
- draws corners of moith inferiorly and laterally (frown)
18
Q
action of buccinator
A
- compresses cheek (whistling and sucking)
- draws corner of mouth laterally
19
Q
action of splenius
A
- extension of the head
20
Q
action of sternocleidomastoid
A
- flexes and laterally rotates the head
21
Q
action of occipitofrontalis (epicranius)
A
Frontal belly = elevates eyebrows, wrinkles skin of forehead
Occipital belly = retracts scalp
