muscle actions

Question 1

elevators of the scapula (2)

Answer 1

upper trapezius

levator scapula

Question 2

depressors of the scapula (2)

Answer 2

pectoralis minor

lower trapezius

Question 3

protractors of the scapula (2)

Answer 3

pectoralis minor

serrates anterior

Question 4

retractors of the scapula (2)

Answer 4

middle trapezius

rhomboid

Question 5

upward rotators of the scapula (2)

Answer 5

upper & lower trapezius

serrates anterior

Question 6

downward rotators of the scapula (3)

Answer 6

levator scapula
rhomboids
pectoralis minor

Question 7

internal rotators of the humerus (5)

Answer 7

anterior deltoid
pectoralis major
subscapularis
teres major
latissimus dorsi

Question 8

external rotation of the humerus (3)

Answer 8

infraspinatus
teres minor
posterior deltoid

Question 9

humeral flexors (4)

Answer 9

anterior deltoid
pectorals major
coracobrachialis
biceps

Question 10

humeral extensors (7)

Answer 10

latissimus dorsi
teres major
posterior deltoid
infraspinatus
teres minor
triceps
pectoralis major

Question 11

humeral abductors (2)

Answer 11

supraspinatus

middle deltoid

Question 12

humeral adductors (4)

Answer 12

pectorals major
coracobrachialis
latissimus dorsi
teres major

Question 13

humeral horizontal abduction

Answer 13

posterior deltoid

Question 14

humeral horizontal adduction (2)

Answer 14

anterior deltoid

pectoralis major

Question 15

elbow flexors (4)

Answer 15

biceps
brachial
brachioradialis
pronator teres

Question 16

elbow extensors (2)

Answer 16

triceps

anconeus

Question 17

forearm supinators (2)

Answer 17

biceps

supinator

Question 18

forearm pronators (2)

Answer 18

pronator teres

pronator quadratus

Question 19

wrist flexors (3)

Answer 19

flexor carpi radialis
flexor carpi lunaris
palmares longus

Question 20

wrist extensors (3)

Answer 20

extensor carpi radialis longus
extensor carpi radialis brevis
extensor carpi ulnaris

Question 21

wrist adductors (2)

Answer 21

extensor carpi ulnaris

flexor carpi ulnaris

Question 22

wrist abductors (2)

Answer 22

flexor carpis radialis

extensor carpi radialis longus

Question 23

serratus anterior

Answer 23

scapula abduction
upward rotation
depression

Question 24

biceps brachii

Answer 24

elbow flexion
forearm supination
shoulder flexion
IR
abduction in ER

Question 25

brachialis

Answer 25

elbow flexor

Question 26

triceps

Answer 26

elbow extension

shoulder extension, hyperextension and adduction

Question 27

psoas major

Answer 27

hip flexion
trunk flexion
lateral flexion

Question 28

iliacus

Answer 28

hip flexion

Question 29

gluteus maximus

Answer 29

hip extension, ER, stabilizes knee thru IT Tract

Question 30

hamstrings

Answer 30

semitendinosus
semimembranosus
biceps femoris

Question 31

semitendinosus and semimembranosus

Answer 31

knee flexion, IR and hip extension

Question 32

biceps femoris

Answer 32

knee flexion, ER & hip extension

Question 33

sartorius

Answer 33

hip flexion
abduction
ER
Knee flexion & IR

Question 34

Quads

Answer 34

rectus femoris

vastus lateralis, medialis & intermedius

Question 35

vastus lateralis, medialis & intermedius

Answer 35

knee extension

Question 36

rectus femoris

Answer 36

knee extension

hip flexion

Question 37

gracilis

Answer 37

hip adduction

knee IR & flexion

Question 38

tibialis anterior

Answer 38

ankle df

inversion

Question 39

gastrocnemius

Answer 39

ankle PF

knee flexion

Question 40

tibialis posterior

Answer 40

ankle inversion