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MSA UE > Muscle Actions > Flashcards

Muscle Actions Flashcards

1
Q

Coracobrachialis

A

Flexion and adduction of shoulder joint

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2
Q

Levator Scapulae

A

origin fixed: Elevates scapula
insertion fixed: Lat flexes cervical vertebrae and rotates bilaterally: may assist in extension

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3
Q

Latissimus Dorsi

A

extension, adduction, medial rotations of shoulder

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4
Q

Lower Trapezius

A

Scapular adduction, depression, + upward rotation

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5
Q

Middle Trapezius

A

Scapular Adduction

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6
Q

Upper Trapezius

A

Elevation of scapula + shoulder, capital ext, rotation of head to opposite side

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7
Q

Pectoralis Minor

A

Scapular Protraction, elevation of ribs in forced inspiration w/ scapula fixed by elevator scapula

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8
Q

Pectoralis Major

A

Whole: Adducts and medially rotates humerus, elevation of sternum in forced inspiration

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9
Q

Pectoralis Major (Clavicle)

A

Horizontal shoulder adduction, flexion and medial rotation

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10
Q

Pectoralis Major (Stern)

A

horizontal shoulder adduction, shoulder extension

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11
Q

Teres Major

A

Medially rotates, adducts and extends the shoulder joint

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12
Q

Subscapularis

A

Medially rotates the shoulder joint, + stabilizes the head of the humerus in the glenoid cavity during movements of the joint

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13
Q

Supraspinatus

A

Abducts the shoulder joint and stabilizes the head of the humerus in the glenoid cavity

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14
Q

Infraspinatus

A

Stabilize and externally rotate

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15
Q

Teres Minor

A

Laterally rotates the shoulder joint and stabilizes the head of the humerus in the glenoid cavity

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16
Q

Rhomboid Major

A

Scapular retraction

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17
Q

Rhomboid Minor

A

Scapular retraction and elevation

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18
Q

Serratus Anterior

A

Scapular abduction, holds scapula against thoracic wall, works w/ trap to rotate scapula upward

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19
Q

Deltoid

A

Abduction of shoulder

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20
Q

Middle Deltoid

A

Abduction of the shoulder joint, performed chiefly by the middle fibers w/ stabilization by the ant. and post. fibers

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21
Q

Triceps

A

Shoulder(long head) and elbow extension

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22
Q

Biceps

A

Supinates forearm when elbow is flexed

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23
Q

Scalenes

A

Cx flexion, lateral flexion same side, aides inspiration

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24
Q

Transverse Abdominus

A

Supports abdominal wall, aides forced expiration and raising intra abdominal pressure

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25
Q

Sternocleidomastoid

A

(unilateral) Lateral flex head to same side, rotates head to opposite side; bilaterally extends head

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26
Q

Internal oblique

A

Lateral flexion and rotate same side, bilaterally flexes, abdominal bracing

27
Q

External oblique

A

rotate and side bend trunk

28
Q

Rectus abdominis

A

Flexes trunk, aids forced expiration and raise intra-abdominal pressure

29
Q

Intercostalis

A

extension of spine

30
Q

Longissimus

A

spine extension

31
Q

Spinalis

A

spine extension

32
Q

Quadratus Lumborum

A

Hip hiker, lateral bend same side, bilateral help w/ bearing down

33
Q

Anconeus

A

Assists triceps with elbow extension

34
Q

Opponens pollicis

A

opposition of thumb

35
Q

Palmar interossei

A

adduct digits 1,2,4,5 towards digit 3

36
Q

Dorsal interossei

A

abducts fingers around digit 3 (DAB) assist to flex MCP while extending IPs

37
Q

Lumbricals

A

Flex MCPs w/ IPs extended

38
Q

Pronator Teres

A

Pronation of forearm, assist w/ elbow flexion

39
Q

Pronator quadratus

A

Pronation of forearm

40
Q

Supinator

A

Supination

41
Q

Extensor digiti minimi

A

extension of 5th digit @ MCP, PIP, DIP joints assists wrist extension and abduction of 5th digit

42
Q

extensor digitorum

A

extends MCP, PIP, DIP joints of digits 2-5, assists wrist extension, IP extension in conjunction with hand intrinsics (2-5)

43
Q

Brachioradialis

A

elbow flexion with the forearm in neutral

44
Q

Brachialis

A

Flexes forearm in all position

45
Q

Flexor carpi radialis

A

flexion and radial deviation (abduction) of wrist

46
Q

Palmaris longus

A

Tenses palmar aponeurosis, assists wrist flexion (cups hand)

47
Q

Extensor pollicis brevis

A

Extends MCP joint of thumb and extension and abduction of CMs joint of thumb, assists w/ radial deviation and wrist extension

48
Q

Extensor indicis

A

Extension of 2nd finger @ MCP, IP extension in conjunction with hand intrinsics of index finger, wrist extension

49
Q

Abductor pollicis longus

A

Extension and abduction of thumb @ CMC joint: radial deviation

50
Q

Extensor pollicis longus

A

Extension of thumb at IP joint, assist with CMC and MP extensions and radial deviation

51
Q

Extensor Carpi radialis longus

A

Extend and radially deviate wrist, assist elbow flexion

52
Q

Abductor pollicis brevis

A

Abduction @ CMC and MCP joints of thumb assist with thumb opposition and IP extension

53
Q

Adductor Pollicis

A

adduction of CMC,, joint of thumb, assists thumb, MCP adduction and flexion

54
Q

Flexor pollicis brevis

A

Flexion of MP and CMC joints; thumb opposition

55
Q

Flexor digiti minimi

A

Flex MCP joint, assists opposition

56
Q

Abductor digiti minimi

A

abduction of 5th digit, opposition of 5th digit, MCP flexion and IP extension

57
Q

Opponens digiti minimi

A

Opposition of pinky to thumb

58
Q

Flexor carpi ulnaris

A

Flexes wrist and ulnarly deviates wrist

59
Q

Flexor digitorum superficialis

A

Flexion of PIP joints 2-5, flexion of MCP joints 2-5 and wrist flexion

60
Q

Flexor pollicis longus

A

Flexion of IP joint of thumb, assists with flexion of MCP and CMC joints of thumb, wrist flexion

61
Q

Extensor carpi ulnaris

A

Extend and ulnar deviation of wrist

62
Q

Extensor Carpi radialis brevis

A

Extend wrist and assist with radial deviation

63
Q

Flexor digitorum profundus

A

Flexion of DIP joints of digits 2-5 and flexion of MCP and PIP joints of digits 2-5 and wrist flexion

MSA UE (5 decks)

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