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MSK Anatomy > Upper Extremity Movements > Flashcards

Upper Extremity Movements Flashcards

1
Q

Deltoid Movements

A

All fibers: abduct shoulder

Anterior fibers: flex, IR and horizontally adduct the shoulder

Posterior fibers: extend, ER, and horizontally abduct the shoulder

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2
Q

Deltoid o/i

A

O: lateral 1/3 of clavicle, acromion and spine of scapula
I: deltoid tuberosity

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3
Q

Trapezius movements

A

Upper fibers:

  • Bilaterally extend head and neck
  • Unilaterally: laterally flex to the SAME side, rotate to the OPPOSITE side, elevate and upwardly rotate the scapula

Middle Fibers: adduct and stabilize the scapula

Lower Fibers: depress and upwardly rotate the scapula

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4
Q

Trapezius o/i

A

O: external occipital protuberance, medial portion of superior nuchal line of the occiput, ligaments niche and SP of C7-T12
I: lateral 1/3 of clavicle, acromion and spine of scapula

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5
Q

Latissimus Dorsi movement

A

Extends, IR and adducts the shoulder

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6
Q

Latissimus dorsi o/i

A

O: inferior angle of scapula, SP of T6-12, ribs 8-12, thoracolumbar aponeurosis and posterior iliac crest
I: Intertuberuclar groove of the humerus

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7
Q

Teres Major movements

A

Extends, adducts and IR the shoulder

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8
Q

Teres Major o/i

A

O: inferior angle and lower 1/3 of lateral border of scapula
I: crest of the lesser tubercle of the humerus

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9
Q

Supraspinatus movements

A

Abducts the shoulder

Stabilizes the humeral head in the glenoid cavity

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10
Q

Supraspinatus o/i

A

O: supraspinatus fossa of the scapula
I: Greater tubercle

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11
Q

Infraspinatus movements

A

ER and abducts the shoulder

Stabilizes the humeral head

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12
Q

Infraspinatus o/i

A

O: Infraspinatus fossa
I: greater tubercle

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13
Q

Teres Minor movements

A

ER and adduct the shoulder

Stabilizes the humeral head

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14
Q

Teres minor o/i

A

O: upper 2/3 of lateral border of scapula
I: greater tubercle

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15
Q

Subscapularis movements

A

IR shoulder

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16
Q

Subscapularis o/i

A

O: subscapular fossa
I: lesser tubercle

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17
Q

Rhomboids movements

A

Adduct, elevate and downwardly rotate the scapula

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18
Q

Rhomboids o/i

A

Major O:SP T2-5
Major I: medial border of the scapula between scapula spine and inferior angle

Minor O: SP of C7-T1
Minor I: upper portion of the medial border of the scapula, across from spine of scapula

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19
Q

Levator scapula movements

A

Bilaterally: extends the neck
Unilaterally: laterally flexes neck and rotates to the same side; elevates and downwardly rotates scapula

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20
Q

Levator scapula o/i

A

O: TP of C1-4
I: medial border of scapula between superior angle and superior portion of spine of scapula

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21
Q

Serratus Anterior movements

A

With the origin fixed:
Abducts, upwardly rotates and depresses the scapula
Holds medial border of scapula against rib cage

With the scapula fixed: may act to elevate the thorax during forced inhalation

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22
Q

Serratus anterior o/i

A

O: external surfaces of ribs 1-9
I: anterior surface of medial border of scapula

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23
Q

Pectoralis Major movements

A

All fibers: adduct and IR the shoulder; assist to elevate the thorax during forced inhalation (with the arm fixed)

Upper fibers (clavicular portion): flex and horizontally adduct the shoulder

Lower fibers (sternocostal portion): extend the shoulder

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24
Q

Pectoralis major o/i

A

Clavicular portion O: medial half of clavicle
Sternocostal portion O: sternum and cartilage of ribs 1-6
I: crest of greater tubercle

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25
Q

Pectoralis Minor movements

A

Scapular depression, protraction and downward rotation

With the scapula fixed, assists to elevate the thorax during forced inhalation

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26
Q

Pectoralis minor o/i

A

O: ribs 3-5
I: Medial surface of coracoid process of the scapula

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27
Q

Biceps Brachii movements

A

Shoulder flexion
Elbow flexion
Supination

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28
Q

Biceps brachii o/i

A

Long head O: supraglenoid tubercle of scapula (tendon passes through the inter tubercular groove of the humerus)

Short head O: coracoid process of scapula

I: Radial tuberosity and aponeurosis of the biceps

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29
Q

Triceps movements

A

All: extend the elbow (humeroulnar joint)

Long head: extends and adducts the shoulder

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30
Q

Triceps o/i

A

Long head O: infraglenoid tubercle

Lateral head O: posterior surface of proximal half of the humerus

Medial head O: posterior surface of distal half of the humerus

I: olecranon process of the ulna

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31
Q

Coracobrachialis movements

A

“armpit muscle”; deep to the pec major and ant deltoid and lies anterior to the axillary artery and brachial plexus

secondary flexor and adductor of the shoulder

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32
Q

Coracobrachialis o/i

A

O: coracoid process of the scapula

I: medial surface of mid humeral shaft

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33
Q

Brachialis movements

A

strong elbow flexor

lies deep to biceps brachii

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34
Q

Brachialis o/i

A

O: distal half of anterior surface of humerus
I: ulnar tuberosity and coronoid process

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35
Q

Brachioradialis movements

A

Flexes the elbow

Assists to pronate and supinate the forearm when these movements are resisted

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36
Q

Brachioradialis o/i

A

O: proximal 2/3 of the lateral supracondylar ridge of the humerus
I: styloid process of the radius

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37
Q

Extensor carpi radialis longus and brevis movements

A

Extend and abduct the wrist

Assist to flex the elbow

38
Q

ECRL o/i

A

O: distal 1/3 of lateral supracondylar ridge of humerus
I: base of 2nd metacarpal
Radial nerve C6-7

39
Q

ECRB o/i

A

O: common extensor tendon from the lateral epicondyle of humerus
I: base of 3rd metacarpal

40
Q

Extensor carpi ulnaris movements

A

Extends and adducts the wrist

41
Q

ECU o/i

A

O: common extensor tendon from the lateral epicondyle of the humerus

I: base of 5th metacarpal

42
Q

Extensor digitorum movements

A

extends fingers 2-5 (MCP and IP joints)

Assists to extend the wrist

43
Q

Extensor digitorum o/i

A

O: common extensor tendon from the lateral epicondyle of the humerus

I: bases of middle and distal phalanges of fingers 2-5

44
Q

Anconeus movements

A

weak elbow extensor

45
Q

Anconeus o/i

A

O: lateral epicondyle of humerus

I: olecranon process and posterior, proximal surface of ulna

46
Q

Extensor Indicis movements

A

Extends and adducts the 2nd finger

May assist with wrist extension

47
Q

Extensor Indicis o/i

A

O: posterior surface of distal shaft of ulna and interosseous membrane
I: tendon of the extensor digitorum at the level of the 2nd metacarpal

48
Q

Flexor carpi radialis movements

A

Flexes and abducts the wrist

May help to flex the elbow

49
Q

Flexor carpi radialis o/i

A

O: common flexor tendon from medial epicondyle
I: bases of 2nd and 3rd metacarpals

50
Q

Palmaris Longus movements

A

Tense the palmar fascia
Flex the wrist
May assist to flex the elbow

51
Q

Palmaris Longus o/i

A

O: Common flexor tendon from medial epicondyle
I: Flexor retinaculum and palmar aponeurosis

52
Q

Flexor carpi ulnaris movements

A

Flex and adduct the wrist

Assist to flex the elbow

53
Q

Flexor carpi ulnaris o/i

A

Humeral head O: common flexor tendon from medial epicondyle
Ulnar head O: posterior surface of proximal 2/3 ulna

I: pisiform, hook of the hamate and base of 5th metacarpal

54
Q

Flexor digitorum superficialis movements

A

Flexes fingers 2-5 (MCP and proximal IPs)

Flexes the wrist

55
Q

Flexor digitorum superficialis o/i

A

O: common flexor tendon, ulnar collateral ligament, coronoid process of ulna, interosseous membrane and proximal shaft of radius

I: sides of middle phalanages of fingers 2-5

56
Q

Flexor digitorum profundis movements

A

Flexes fingers 2-5 (MCP and DIPs)

Assists to flex the wrist

57
Q

Flexor digitorum profundis o/i

A

O: anterior and medial surfaces of proximal 3/4 of ulna

I: bases of distal phalanges, palmar surface of fingers 2-5

58
Q

Pronator teres movements

A

Pronates the forearm

Assists to flex the elbow

59
Q

Pronator teres o/i

A

O: common flexor tendon from medial epicondyle and coronoid process of the ulna

I: middle of lateral surface of the radius

60
Q

Pronator Quadratus movements

A

Pronates the forearm

61
Q

Pronator Quadratus o/i

A

O: medial, anterior surface of distal ulna

I: lateral, anterior surface of distal radius

62
Q

Supinator movements

A

Supinates the forearm

63
Q

Supinator o/i

A

O: lateral epicondyle, radial collateral ligament, anular ligament and supinator crest of the ulna

I: anterior, lateral surface of proximal 1/3 of radial shaft

64
Q

Abductor pollicis longus movements

A

Abducts and extends the thumb

Radially deviates the wrist

65
Q

Abductor pollicis longus o/i

A

O: posterior surface of radius and ulna and interosseous membrane

I: base of 1st metacarpal

66
Q

Extensor Pollicis Longus and brevis movements

A

Extends the thumb (CMC, MCP and IP)

Abducts the wrist

67
Q

Extensor Pollicis o/i

A

O: posterior surface of ulna and interosseous membrane
I: base of distal phalanx of thumb

68
Q

Extensor Pollicis brevis o/i

A

O: posterior surface of radius and interosseous membrane
I: base of proximal phalanx of thumb

69
Q

Flexor pollicis longus movements

A

Flex the thumb (CMC, MCP, IP)

Assists to flex the wrist

70
Q

Flexor pollicis longus o/i

A

O: anterior surface of radius and interosseous membrane
I: base of distal phalanx of thumb

71
Q

Abductor pollicis brevis movements

A

abducts the thumb (CMC and MCP)

Assists in opposition

72
Q

Abductor pollicis brevis o/i

A

O: flexor retinaculum, trapezium and scaphoid tubercles
I: base of proximal phalanx of thumb

73
Q

Flexor pollicis brevis movements

A

Flexes the thumb (CMC and MCP)

Assists in opposition

74
Q

Flexor pollicis brevis o/i

A

Superficial head O: flexor retinaculum
Deep head O: trapezium, trapezoid and capitate

I: base of proximal phalanx of thumb

75
Q

Opponens pollicis movements

A

Opposition of the thumb at the CMC

76
Q

Opponens pollicis o/i

A

O: flexor retinaculum and tubercle of the trapezium

I: entire length of 1st metacarpal bone, radial surface

77
Q

Adductor pollicis movements

A

Adducts the thumb (CMC and MCP)

Assists to flex the thumb (MCP)

78
Q

Adductor pollicis o/i

A

O: capitate, 2nd and 3rd metacarpals

I: base of proximal phalanx of thumb

79
Q

Abductor digiti minimi movements

A

abduct 5th digit (MCP)

Assists in opposition of the 5th finger

80
Q

Abductor digiti minimi o/i

A

O: pisiform and tendon of FCU

I: base of proximal phalanx of 5th finger, ulnar surface

81
Q

Flexor digiti minimi brevis movements

A

Flexes the 5th finger (MCP)

Assists in opposition of the 5th finger

82
Q

Flexor digiti minimi brevis o/i

A

O: hook of the hamate and flexor retinaculum

I: base of proximal phalanx of 5th finger, palmar surface

83
Q

Opponens digiti minimi movements

A

Opposition of 5th finger at the CMC

84
Q

Opponens digiti minimi o/i

A

O: hook of hamate and flexor retinaculum

I: shaft of 5th metacarpal, ulnar surface

85
Q

Lumbricals of the hand movements

A

Flexes fingers 2-5 at MCPs

Extension of proximal and distal IPs

86
Q

Lumbricals of the hand o/i

A

O: surfaces of the FDP tendons
1st- from radial side of index finger (unipennate)
2nd- from radial side of middle finger (unipennate)
3rd- from contiguous sides of middle and ring fingers (bipennate)
4th- from contiguous sides of ring and little fingers (bipennate)

I: extensor aponeurosis on dorsal surface of phalanges (passes on the radial side of each digit and inserts into the distal wing of the extensor expansion)

87
Q

Palmar interossei (unipennate) movements

A

Adducts fingers 2, 4, 5 towards the 3rd finger

Assists to flex the thumb, 2nd, 4th and 5th fingers at the MCPs

Asssists to extend the thumb, 2nd, 4th and 5th fingers at the IPs

88
Q

Palmar interossei (unipennate) o/i

A

O: base of 1st, 2nd, 4th and 5th metacarpals

I: base of the proximal phalanx of the related finger and the extensor aponeurosis

89
Q

Dorsal interossei (bipennate) movements

A

Abducts the 2nd, 3rd and 4th fingers at the MCPs

Assists to flex 2nd, 3rd and 4th fingers at the MCP

Assists to extend the 2nd, 3rd and 4th fingers at the IP

90
Q

Dorsal interossei (bipennate) o/i

A

O: adjacent sides of all metacarpals

I: base of the proximal phalanx of the 2nd, 3rd and 4th fingers and the extensor aponeurosis

MSK Anatomy (6 decks)

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