Selected Skeletal Muscles Flashcards
1
Q
A
2
Q
B, E and area between
A
epicranius
- made up of frontal and occipital bellies, plus cranial aponeurosis
3
Q
part E
A
frontalis belly of epicranium
4
Q
part B
A
occipitalis belly
5
Q
part A
A
temporalis
- closes jaw, synergist to masseter
6
Q
part F
A
orbicularis oculi
7
Q
part G
A
zygomaticus major
raise corners of mouth up
8
Q
part C
A
masseter
9
Q
A
sternocleidomastoid
- flexion and lateral rotation of head
10
Q
A
trapezius
- shrugs shoulder, hyperextends head
11
Q
A
erector spinae
- prime mover of back extension
12
Q
A
rhomboids
- note rhombus shape
- deep to trapezius
- stabilize and retract scapula
13
Q
A
latissimus dorsi
- prime mover of arm extension, adduction and medial shoulder rotation
14
Q
A
diaphragm
- prime mover of inspiration
15
Q
A
external intercostals
- synergist of diaphragm, pull ribs forward toward each other, elevating ribcage
16
Q
A
internal intercostals
17
Q
A
rectus abdominis
- flex/rotate lumbar region
18
Q
A
external obliques
- flexes vertebral column and abdominal wall
19
Q
A
internal oblique
- same action as externals, just deeper
20
Q
A
transversus abdominis
- compresses abdominal contents
- deepest of abdominal muscles