Muscles Responsible for Actions

Question 1

Ankle Plantar Flexion

Answer 1

Agonist muscles: Gastrocnemius and soleus

Question 2

Ankle Dorsi Flexion

Answer 2

Agonist muscles: Tibialis anterior

Question 3

Subtalar Eversion

Answer 3

Agonist muscles: Fibularis longus and fibularis brevis

Question 4

Subtalar Inversion

Answer 4

Agonist muscles: Tibialis anterior and tibialis posterior

Question 5

Toe Flexion

Answer 5

Agonist muscles: Flexor digitorum longum (toes 2-5)

and flexor hallucis longus (1st toe)

Question 6

Toe Extension

Answer 6

Agonist muscles: Extensor digitorum longus (toes 2-

5) and extensor hallucis longus (1st toe)

Question 7

Hip Flexion

Answer 7

iliopsoas, sartorius, tensor fasciae latae, rectus femoris, adductor longus, pectineus

Question 8

Hip Extension

Answer 8

gluteus maximus, biceps femoris (long head), semitendinosus, semimembranosus and adductor magnus (posterior head)

Question 9

Hip Abduction

Answer 9

gluteus medius + minimus and tensor fasciae latae

Question 10

Hip Adduction

Answer 10

pectineus, adductor longus, gracilis, adductor brevis and adductor magnus

Question 11

Hip Internal Rotation

Answer 11

gluteus medius + minimus, tensor fasciae latae,

adductor longus, adductor brevis and pectineus

Question 12

Hip External Rotation

Answer 12

gluteus maximus, piriformis, obturator internus, gemellus inferior + superior and quadratus femoris

Question 13

Knee Flexion

Answer 13

biceps femoris, semitendinosus and semimembranosus

Question 14

Knee Extension

Answer 14

rectus femoris, vastus lateralis, vastus medialis and vastus intermedialis

Question 15

Scapula Depression

Answer 15

Lower Trapezius
Serratus anterior
Pectoralis minor

Question 16

Scapula Elevation

Answer 16

Upper Traps
Rhomboids
Levator scapulae

Question 17

Scapula Retraction

Answer 17

Middle traps

Rhomboids

Question 18

Scapula Protraction

Answer 18

Serratus Anterior

Pectoralis minor

Question 19

Scapula Upwards Rotation

Answer 19

Upper and lower traps

Serratus anterior

Question 20

Scapula Downwards Rotation

Answer 20

Rhomboids
Levator scapulae
pec minor

Question 21

Shoulder External Rotation

Answer 21

Posterior deltoid
Infraspinatus
Teres minor

Question 22

Shoulder Internal Rotation

Answer 22

Anterior deltoids
Latissimus dorsi
teres major
subscapularis
pec major

Question 23

Shoulder Flexion

Answer 23

Anterior Deltoids
Pec major upper fiber
Biceps brachii

Question 24

Shoulder Extension

Answer 24

Posterior Deltoid
Latissimus dorsi
Teres major
Triceps brachii long head

Question 25

Shoulder Horizontal Abduction

Answer 25

Posterior Deltoid

Question 26

Shoulder Horizontal Adduction

Answer 26

Anterior Deltoids | Pec major upper

Question 27

Shoulder Abduction

Answer 27

Middle Deltoid | Supraspinatus

Question 28

Shoulder Adduction

Answer 28

Latissimus dorsi Teres major Pectoralis major

Question 29

Elbow Flexion

Answer 29

Biceps Brachii Brachialis Brachioradialis

Question 30

Elbow Extension

Answer 30

Triceps Brachii

Question 31

Forearm Supination

Answer 31

Biceps Brachii | Supinator

Question 32

Elbow Pronation

Answer 32

Pronator Teres | Pronator Quadratus

Question 33

Wrist Flexors

Answer 33

Flexor carpi radialis Flexor carpi ulnaris palmaris longus

Question 34

Wrist Extensors

Answer 34

Extensor carpi radialis longus Extensor carpi radialis brevis Extensor carpi ulnaris

Question 35

Ulnar Deviation

Answer 35

Extensor carpi ulnaris | flexor carpi ulnaris

Question 36

Radial Deviation

Answer 36

Extensor carpi radialis longus Extensor carpi radialis brevis Flexor carpi radialis

Question 37

Finger Extension

Answer 37

Extensor digitorum | lumbricals

Question 38

Finger Flexion

Answer 38

Flexor digitorum superficialis Flexor digitorum profundus Lumbricals

Question 39

Thumb Flexion

Answer 39

Flexor pollicis longus | Flexor pollicis brevis

Question 40

Thumb Extension

Answer 40

Extensor pollicis longus Extensor pollicis brevis Abductor pollicis longus

Question 41

Thumb Opposition

Answer 41

Opponens pollicis