UE Muscle Action Flashcards Preview

Anatomy > UE Muscle Action > Flashcards

Flashcards in UE Muscle Action Deck (54):
0

Trapezius (upper fibers)

Extend head
Extend cervical vertebral column

1

Trapezius (middle fibers)

Elevate scapula
Upward rotate scapula

2

Trapezius (lower fibers)

Depress scapula
Downward rotate scapula

3

Latissimus dorsi

Extend arm
Medially rotate arm
Depress scapula
Retract scapula
Downward rotate scapula

4

Rhomboideus major

Retract scapula
Downward rotate scapula
Elevate scapula

5

Rhomboideus minor

Retract scapula
Downward rotate scapula
Elevate scapula

6

Levator scapulae

Elevate scapula
Downward rotate scapula

7

Serratus anterior

Protract scapula
Assists in breathing
Prevents scapular winging

8

Teres major

Adduct arm
Extend arm
Medially rotate arm

9

Deltoid (clavicular head)

Abduct arm
Flex arm
Medially rotate arm

10

Deltoid (spinal head)

Abduct arm
Extend arm
Laterally rotate arm

11

Supraspinatus

Abduct arm
Support glenohumeral joint

12

Infraspinatus

Laterally rotate arm
Support glenohumeral joint

13

Teres minor

Laterally rotate arm
Adduct arm (weak)
Support glenohumeral joint

14

Subscapularis

Medially rotate arm
Support glenohumeral joint

15

Pectoralis major (clavicular head)

Adduct arm
Medially rotate arm
Help flex an extended arm

16

Pectoralis major (sternocostal head)

Adduct arm
Medially rotate rm
Help extend a flexed arm

17

Coracobrachialis

Flex arm
Assist in adduction

18

Biceps brachii

Flex arm
Flex forearm
Supinate forearm

19

Brachialis

Flex forearm

20

Triceps brachii long head

Extend forearm
Extend arm

21

Triceps brachii medial head

Extend forearm

22

Triceps brachii lateral head

Extend forearm

23

Pronator teres

Pronate forearm
Flex elbow

24

Flexor carpi radialis

Flex wrist
Abduct hand (radial deviation)
Flex elbow (weak)

25

Palmaris longus

Flex wrist
Flex elbow (weak)

26

Flexor digitorum superficialis

Flex proximal interphalangeal joints
Flex metacarpophalangeal joints
Flex wrist
Flex elbow (weak)

27

Pronator quadratus

Pronate forearm

28

Flexor pollicis longus

Flex interphalangeal joint of pollux
Flex metacarpophalangeal joint of pollux
Flex wrist

29

Flexor digitorum profundus

Flex distal interphalangeal joints
Flex proximal interphalangeal joints
Flex metacarpophalangeal joints
Flex wrist

30

Flexor carpi ulnaris

Flex wrist
Adduct hand (ulnar deviation)
Flex elbow (weak)

31

Aconeus

Assist in elbow extension

32

Brachioradialis

Elbow flexion

33

Extensor carpi radialis longus

Extend wrist
Abduct wrist (radial deviation)

34

Extensor carpi radialis brevis

Extend wrist
Abduct wrist (radial deviation)

35

Extensor digitorum

Extend fingers
Extend wrist

36

Extensor digit minimi

Extend digit 5
Extend wrist

37

Extensor carpi ulnaris

Extend wrist
Adduct wrist (ulnar deviation)

38

Supinator

Supinate forearm

39

Extensor indicis

Extend digit 2
Extend wrist

40

Abductor pollicis longus

Abduct thumb

41

Extensor pollicis brevis

Extend thumb at metacarpophalangeal joint

42

Extensor pollicis longus

Extend thumb at metacarpophalangeal joint and interphalangeal joint

43

Abductor pollicis brevis

Abduct thumb
Assist in flexion of thumb

44

Flexor pollicis brevis

Flex thumb

45

Opponens pollicis

Opposition

46

Abductor digiti minimi

Abduct 5th digit

47

Flexor digiti minimi

Flex 5th digit metacarpophalangeal joint

48

Opponens digiti minimi

Opposition of 5th digit

49

Palmaris brevis

Wrinkles skin on ulnar side of palm
"Cupping" of hand

50

Lumbercals

Flex metacarpophalangeal joints
Extend proximal and distal interphalangeal joints

51

Dorsal interossei

Abduct digits 2, 3, 4
Assists in flexing digits 2,3,4

52

Palmar interossei

Adduct digits 2,4,5
Assist in flexing metacarpophalangeal joints of digits 2,4,5

53

Adductor pollicis

Addict thumb
Assist in opposition