Posterior Muscles (action)

Question 1

upper trapezius

Answer 1

elevation and up rotation of scapula

Question 2

middle trapezius

Answer 2

elevation of scapula and retraction and up rotation of scapula

Question 3

lower trapezius

Answer 3

retraction and depression and up rotation of scapula

Question 4

rhomboid minor

Answer 4

down rotation and retraction of scapula

Question 5

rhomboid major

Answer 5

down rotation and retraction of scapula

Question 6

fibularis longus

Answer 6

eversion of ankle and plantar flexion of the ankle

Question 7

posterior deltoid

Answer 7

extension and external rotation and abduction of humerus

Question 8

tensor fasciae latae

Answer 8

abduction of hip and flexion of hip and internal rotation of hip as it flexes

Question 9

supraspinatus

Answer 9

abduction of humerus

Question 10

tibialis posterior

Answer 10

inversion of foot and plantar flexion ankle

Question 11

brachioradialis

Answer 11

flexion of elbow and pronation of forearm and supination of forearm

Question 12

piriformis

Answer 12

external rotation of hip and abduction of hip

Question 13

soleus

Answer 13

plantar flexion of ankle

Question 14

fibularis brevis

Answer 14

eversion of ankle and plantar flexion of ankle

Question 15

popliteus

Answer 15

slight medial rotation of tibia at knee, flexion of knee

Question 16

gluteus minimus

Answer 16

abduction of hip and internal rotation of hip

Question 17

triceps brachii

Answer 17

extension of elbow and extension of shoulder and adduction of shoulder

Question 18

levator scapulae

Answer 18

elevation of scapula

Question 19

subscapularis

Answer 19

internal rotation of humerus

Question 20

infraspinatus

Answer 20

external rotation of humerus

Question 21

erector spinae

Answer 21

lateral flexion of the spine and extension of the spine

Question 22

semitendinosus

Answer 22

extension of hip and flexion of knee and internal rotation of hip

Question 23

gluteus maximus

Answer 23

extension of hip and external rotation of hip and abduction of hip

Question 24

gastrocnemius

Answer 24

plantar flexion of ankle and flexion of knee

Question 25

teres major

Answer 25

extension and internal rotation of humerus

Question 26

serratus anterior

Answer 26

protraction and up rotation of scapula

Question 27

flexor digitorum longus

Answer 27

flexion of digits 2-5 and plantar flexion of ankle

Question 28

semimembranosus

Answer 28

extension of hip and flexion of knee and internal rotation of hip

Question 29

gluteus medius

Answer 29

abduction of hip and internal rotation of hip

Question 30

flexor hallucis longus

Answer 30

flexion of hallucis and plantar flexion of ankle

Question 31

latissimus dorsi

Answer 31

extension and adduction and internal rotation of humerus

Question 32

plantaris

Answer 32

plantar flexion of ankle and flexion of knee

Question 33

teres minor

Answer 33

external rotation and adduction of humerus

Question 34

supinator

Answer 34

supination of forearm

Question 35

quadratus lumborum

Answer 35

ipsilateral flexion and stabilizes the pelvis and lumbar spine

Question 36

biceps femoris

Answer 36

extension of hip and flexion of knee and external rotation of hip