Muscle Actions

Question 1

scapula elevation

Answer 1

levator scapulae and upper trap

Question 2

scapular depression

Answer 2

lats
pec major
pec minor
lower trap

Question 3

scapular retraction

Answer 3

rhomboids and middle trap

Question 4

scapular protraction

Answer 4

serratus anterior and pec minor

Question 5

upward rotation

Answer 5

upper and lower trapezius

serratus anterior

Question 6

downward rotation

Answer 6

pec minor,
levator scapula
rhomboids

Question 7

shoulder flexion

Answer 7

anterior deltoid
pec major
biceps brachii (long head)
coracobrachialis

Question 8

shoulder extension

Answer 8

lats
posterior deltoid
teres major
triceps brachii (long head)

Question 9

shoulder abduction

Answer 9

middle deltoid

supraspinatus

Question 10

shoulder adduction

Answer 10

lats
pec major
teres major

Question 11

shoulder horizontal abduction

Answer 11

posterior deltoid
infraspinatus
teres minor

Question 12

shoulder horizontal adduction

Answer 12

pec major

anterior deltoid

Question 13

shoulder ER

Answer 13

posterior deltoid
infraspinatus
teres minor

Question 14

shoulder IR

Answer 14

subscapularis 
teres major
pec major 
lats
anterior deltoid

Question 15

elbow flexion

Answer 15

biceps brachii
brachialis
brachioradialis

Question 16

elbow extension

Answer 16

triceps

anconeus

Question 17

supination

Answer 17

biceps brachii

supinator

Question 18

pronation

Answer 18

pronator teres

pronator quadratus