Muscles By Action

Question 1

Shoulder flexion

Answer 1

Biceps Brachii
Coracobrachialis
Clavicular portion of pectoralis major
Anterior deltoid

Question 2

Wrist flexion

Answer 2

Flexor Carpi Radialis
Flexor Carpi Ulnaris
Palmaris Longus

C8 Motor

Question 3

Shoulder extension

Answer 3

Latissimus Dorsi
Teres major
Posterior deltoid

Question 4

Elbow extension

Answer 4

Triceps Brachii
Anconeus

C7 motor

Question 5

Wrist extension

Answer 5

Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Carpi Ulnaris

C7 Motor

Question 6

Protraction

Answer 6

Serratus Anterior

Pectoralis Minor

Question 6

Shoulder abduction

Answer 6

Middle Deltoid

Supraspinatus

Question 7

Upward rotation of the scapula

Answer 7

Upper & lower Trapezius working together

Inferior fibers of Serratus Anterior

Question 9

Retraction

Answer 9

Rhomboid Major
Rhomboid Minor
Middle Trapezius

Question 10

Downward rotation of the scapula

Answer 10

Levator Scapulae
Rhomboids
Pectoralis minor

Question 10

Scapular depression

Answer 10

Lower trapezius
Latissimus dorsi
Pectoralis major & minor

Question 11

Scapular elevation

Answer 11

Upper trapezius
Levator scapulae

Rhomboid major & minor

Question 12

Shoulder adduction

Answer 12

Latissimus Dorsi
Teres Major
Pectoralis Major

Question 13

Elbow flexion

Answer 13

Biceps Brachii
Brachialis
Brachioradialis

C6 motor

Question 14

Ulnar deviation

Answer 14

Extensor carpi ulnaris

Flexor carpi ulnaris

Question 15

Shoulder internal rotation

Answer 15

Latissimus dorsi
Anterior deltoid
Teres major
Pectoralis major
Subscapularis

Question 16

Forearm pronation

Answer 16

Pronator Quadratus
Pronator Teres

C7 motor

Question 17

Shoulder external rotation

Answer 17

Infraspinatus
Posterior deltoid
Teres Minor

Question 18

Forearm supination

Answer 18

Biceps Brachii
Supinator

C6 motor

Question 19

Radial deviation

Answer 19

Flexor carpi radialis
Extensor carpi radialis
Extensor pollicus brevis & longus

Question 20

Knee flexion

Answer 20

Sartorius
Semitendinosis
Semimembranosus
Biceps femoris

Question 21

Knee extension

Answer 21

Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius

Question 22

Medial rotation of the knee

Answer 22

Semitendinosus

Semimembranosus

Question 23

Lateral rotation of the knee

Answer 23

Biceps femoris

Question 25

Hip flexion

Answer 25

Iliopsoas Sartorius Pectineus Rectus femoris

Question 26

Hip extension

Answer 26

Gluteus Maximus& medius Semi tendinous Semi membranous Biceps femoris

Question 27

Hip ABduction

Answer 27

``` Gluteus medius Gluteus minimus Pisiformis Obturator internus TFL ```

Question 28

Hip ADDuction

Answer 28

Adductor magnus Adductor longus Adductor brevis Gracilis

Question 29

Hip Internal rotation

Answer 29

``` Gluteus medius Gluteus minimus Adductor longus Pectineus TFL ```

Question 29

Trunk flexion

Answer 29

Thigh fixed with bilateral papas major

Question 30

Plantar flexion

Answer 30

``` Tibialis posterior Gastrocnemius Soleus Peroneus longus Peroneus brevis Plantaris Flexor hallucis ```

Question 31

Dorsiflexion

Answer 31

Tibialis anterior Extensor hallucis longus Extensor digitorum longus Peroneus tertius

Question 32

Ankle inversion

Answer 32

Tibialis posterior & anterior | Flexor digitorum longus

Question 33

Ankle eversion

Answer 33

Perineus longus, brevis & tertius

Question 34

TMJ depression

Answer 34

Lateral pterygoid Suprahyoid Infrahyoid

Question 35

TMJ elevation

Answer 35

Temporalis Masseter Medial pterygoid

Question 36

TMJ protrusion

Answer 36

Masseter | Lateral & Medial pterygoid

Question 37

TMJ retrusion

Answer 37

Temporalis Masseter Digastric

Question 38

TMJ side to side

Answer 38

Medial & lateral pterygoid Masseter Temporalis

Question 39

Cervical flexion

Answer 39

SCM Longus colli Scalenus muscles

Question 40

Cervical extension

Answer 40

``` Splenius cervicis Semispinalis cervicis Iliocostalis cervicis Longussimus cervicis Multifidus Trapezius ```

Question 41

Cervical rotation and lateral bending

Answer 41

``` SCM Scale us m. Splenius cervicis Longissimus cervicis Iliocostalis cervicis Levator scapulae Multifidus ```

Question 42

Thoracic and lumbar flexion

Answer 42

Rectus abdominis | Internal & external oblique

Question 43

Thoracic and lumbar extension

Answer 43

Erector spinae Quadratus lumborum Multifidus

Question 44

Thoracic and lumbar rotation and lateral bending

Answer 44

``` Psoas major Quadratus lumborum External & internal oblique Multifidus Longissimus thoracis Iliocostalis thoracis Rotatores ```