chap 10 muscular system ID with actions Flashcards
name action of each muscle
1
Q
masseter
A
jaw closure
2
Q
epicranius, frontal belly
A
raises eyebrows
3
Q
platysma
A
tenses skin of neck
4
Q
zygomaticus
A
smiling
5
Q
orbicularis oculi
A
closes eyelids
6
Q
orbicular oris
A
closes lips
7
Q
sternocleidomastoid
A
neck flexion
8
Q
diaphragm
A
inspiration
9
Q
rectus abdominus
A
flex vertabral column
compresses abdomen
10
Q
latissimus dorsi
A
arm adduction, shoulder extension
11
Q
pectoralis major
A
arm adduction, shoulder flexion
12
Q
deltoid
A
arm abduction
13
Q
biceps brachii
A
flexes elbow joint and supinates forearm
14
Q
triceps brachii
A
elbow extension
15
Q
trapezius
A
elevates scapula, shoulder shrug.
can tense up during anxiety