Muscle Actions

Question 1

TMJ Depression

Answer 1

lateral pterygoid
supra hyoid
infra hyoid

Question 2

TMJ Elevation

Answer 2

temporalis
masseter
medial pterygoid

Question 3

TMJ Protrusion

Answer 3

masseter
lateral pterygoid
medial pterygoid

Question 4

TMJ Retrusion

Answer 4

temporalis
masseter
digastric

Question 5

TMJ side to side

Answer 5

medial pterygoid
lateral pterygoid
masseter
temporalis

Question 6

Cervical flexion

Answer 6

sternocleidomastoid
longus coli
scalenus muscles

Question 7

Cervical extension

Answer 7

splenius cervicis
semispinalis cervicis
iliocostalis cervicis
longissimus cervicis
multifidus
trapezius

Question 8

cervical rotation and lateral flexion

Answer 8

sternocleidomastoid
scalenus muscles
splenius cervicis
longissimus cervicis
iliocostalis cervicis
levator scapulae 
multifidus

Question 9

Thoracic/Lumbar Flexion

Answer 9

rectus abdominis
internal oblique
external oblique

Question 10

Thoracic/Lumbar Extension

Answer 10

erector spinae
quadratus lumborum
multifidus

Question 11

Thoracic/Lumbar Rotation and Lateral Flexion

Answer 11

posts major
quadratus lumborum
external oblique
internal oblique
multifidus
longissimus thoracis
iliocostalis thoracis
rotatores

Question 12

Scapula Elevation

Answer 12

upper trapezius

levator scapulae

Question 13

scapula depression

Answer 13

latissimus dorsi
pectoralis major
pectoralis minor
lower trapezius

Question 14

scapular protraction

Answer 14

serrates anterior

pectoralis minor

Question 15

scapular retraction

Answer 15

middle trapezius

rhomboids

Question 16

scapular upward rotation

Answer 16

trapezius (upper, lower)

serrates anterior

Question 17

scapular downward rotation

Answer 17

rhomboids
levator scapulae
pectoralis minor

Question 18

shoulder flexion

Answer 18

anterior deltoid
coracobrachialis
pectorals major (clavicular head)
biceps brachii

Question 19

shoulder extension

Answer 19

latissimus dorsi
posterior deltoid
theres major
triceps brachii (long head)

Question 20

shoulder abduction

Answer 20

middle deltoid

supraspinatus

Question 21

shoulder adduction

Answer 21

pectoralis major
latissimus dorsi
teres major

Question 22

shoulder horizontal abduction

Answer 22

posterior deltoid
infraspinatus
teres minor

Question 23

shoulder horizontal adduction

Answer 23

anterior deltoid

pectoralis major

Question 24

shoulder lateral/external rotation

Answer 24

teres minor
infraspinatus
posterior deltoid

Question 25

shoulder medial/internal rotation

Answer 25

subscapularis
theres major
pectoralis major
latissimus dorsi
anterior deltoid

Question 26

elbow flexion

Answer 26

biceps brachii
brachialis
brachioradialis

Question 27

elbow extension

Answer 27

triceps brachii

anconeus

Question 28

supination

Answer 28

biceps brachii

supinator

Question 29

pronation

Answer 29

pronator teres

pronator quadratus

Question 30

wrist flexion

Answer 30

flexor carpi radialis
flexor carpi ulnaris
palmaris longus

Question 31

wrist extension

Answer 31

extensor carpi radials longus
extensor carpi radialis brevis
extensor carpi ulnaris

Question 32

wrist radial deviation

Answer 32

extensor carpi radialis longus 
extensor carpi radialis brevis
flexor carpi radialis 
extensor pollicis longus
extensor pollicis brevis

Question 33

wrist ulnar deviation

Answer 33

extensor carpi ulnaris

flexor carpi ulnaris

Question 34

finger flexion

Answer 34

flexor digitorum profundus
flexor digitorum superficialis
flexor digiti minimi (5th digit)
interossei
lumbricals

Question 35

finger extension

Answer 35

extensor digitorum communis
extensor indicis (2nd digit)
extensor digiti minimi (5th digit)