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Muscles of back/upper extremity > BLOCK 1 BACK/ARM FINAL 2 > Flashcards

BLOCK 1 BACK/ARM FINAL 2 Flashcards

1
Q

Pectoralis major attachments

A

P: medial 1/2 clavicle, manubrium, sternum, costal cartilages 1-6, external obliques
D: intertubercular sulcus of humerus

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2
Q

Pectoralis major actions

A

protract, inferiorly rotate scapula

adduct, medially rotate humerus

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3
Q

Pectoralis major innervation

A

medial and lateral pectoral nerves (C5, C6)

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4
Q

Pectoralis major blood supply

A

pectoral branch of thoracoacromial artery

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5
Q

Pectoralis minor attachments

A

P: costal cartilage and ribs 3-5
D: coracoid process of scapula

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6
Q

Pectoralis minor actions

A

protract, depress, inferiorly rotate scapula

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7
Q

Pectoralis minor innervation

A

medial pectoral nerve (C8, T1)

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8
Q

Pectoralis minor blood supply

A

pectoral branch of thoracoacromial artery

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9
Q

Subclavius attachments

A

P: 1st rib and costal cartilage
D: middle 1/3 clavicle in subclavian groove

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10
Q

Subclavius actions

A

assists in stabilizing, depressing clavicle

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11
Q

Subclavius innervation

A

nerve to subclavius (C5, C6)

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12
Q

Subclavius blood supply

A

clavicular branch of thoracoacromial artery

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13
Q

Serratus anterior attachments

A

P: lateral part ribs 1-9
D: medial border of scapula

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14
Q

Serratus anterior actions

A

antagonize rhomboids

protract, depress, superiorly rotate scapula

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15
Q

Serratus anterior innervation

A

long thoracic nerve (C5, C6, C7)

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16
Q

Serratus anterior blood supply

A

lateral thoracic artery

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17
Q

Coracobrachialis attachments

A

P: coracoid process of scapula
D: middle 1/3 medial surface of humerus

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18
Q

Coracobrachialis actions

A

adducts, flexes arm

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19
Q

Coracobrachialis innervation

A

musculocutaneous nerve (C5, C6, C7)

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20
Q

Coracobrachialis blood supply

A

brachial artery

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21
Q

Biceps brachii attachments

A

P: long head @ supraglenois tubercle of scapula
short head @ coracoid process of scapula
D: radial tuberosity (bicipital aponeurosis)

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22
Q

Biceps brachii actions

A

supinates forearm, weakly flexes

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23
Q

Biceps brachii innervation

A

musculocutaneous nerve (C5, C6, C7)

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24
Q

Biceps brachii blood supply

A

brachial artery

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25
Q

Brachialis attachments

A

P: distal 1/2 anterior humerus
D: coronoid process and ulnar tuberosity

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26
Q

Brachialis actions

A

flex forearm at elbow

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27
Q

Brachialis innervation

A

musculocutaneous nerve (C5, C6, C7)

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28
Q

Brachialis blood supply

A

brachial artery

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29
Q

Triceps brachii attachments

A

P: long head @ infraglenoid tubercle of humerus
lateral head @ post. humerus sup. to radial groove, medial head @ post. humerus inf. to radial groove
D: proximal olecranon

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30
Q

Triceps brachii actions

A

chief extensor of forearm

antagonize biceps

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31
Q

Triceps brachii innervation

A

radial nerve

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32
Q

Anconeus attachments

A

P: lateral epicondyle of humerus
D: lateral olecranon, post. ulna

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33
Q

Anconeus actions

A

assist triceps in extending elbow, stabilize elbow

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34
Q

Anconeus innervation

A

radial nerve

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35
Q

Pronator teres attachments

A

P: medial epicondyle of humerus, coronoid process
D: middle lateral radius

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36
Q

Pronator teres action

A

pronate forearm, flex at elbow

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37
Q

Pronator teres innervation

A

median nerve

38
Q

Flexor carpi radialis attachments

A

P: medial epicondyle of humerus
D: base of 2nd metacarpal

39
Q

Flexor carpi radialis actions

A

weakly flex, abduct hand at wrist

40
Q

Flexor carpi radialis innervation

A

median nerve

41
Q

Palmaris longus attachments

A

P: medial epicondyle of humerus
D: palmar aponeurosis

42
Q

Palmaris longus actions

A

tense palmar aponeurosis

weakly flex hand at wrist

43
Q

Palmaris longus innervation

A

median nerve

44
Q

Flexor carpi ulnaris attachments

A

P: medial epicondyle of humerus, olecranon, post. ulna border
D: pisiform, hook of hamate, 5th metacarpal

45
Q

Flexor carpi ulnaris actions

A

flex, adduct hand at wrist

46
Q

Flexor carpi ulnaris innervation

A

ulnar nerve

47
Q

Flexor digitorum superficialis attachments

A

P: medial epicondyle, superior 1/2 anterior radius
D: middle phalanges digits 2-5

48
Q

Flexor digitorum superficialis actions

A

flex middle and proximal phalanges

49
Q

Flexor digitorum superficialis innervation

A

median nerve

50
Q

Flexor digitorum profundus attachments

A

P: interosseous membrane, proximal ant. med. ulna
D: base of digits 2-5

51
Q

Flexor digitorum profundus actions

A

flex distal phalanges

52
Q

Flexor digitorum profundus innervation

A

ulnar half: ulnar nerve

radial half: anterior interosseous nerve

53
Q

Flexor pollicis longus attachments

A

P: interosseous membrane, anterior radius
D: base of distal phalanx of thumb

54
Q

Flexor pollicis longus innervation

A

anterior interosseous nerve

55
Q

Pronator quadratus attachments

A

P: distal 1/4 ulna
D: distal 1/4 radius

56
Q

Pronator quadratus actions

A

pronate forearm, bind ulna and radius

57
Q

Pronator quadratus innervation

A

anterior interosseous nerve

58
Q

Brachioradialis attachments

A

P: lateral supracondylar ridge of humerus
D: distal radius proximal to styloid

59
Q

Brachioradialis actions

A

flex forearm at elbow

60
Q

Brachioradialis blood supply

A

radial recurrent artery

61
Q

Brachioradialis innervation

A

superficial branch of radial nerve

62
Q

Extensor carpi radialis longus attachments

A

P: lateral supracondylar ridge of humerus
D: base of 2nd metacarpal

63
Q

Extensor carpi radialis longus actions

A

extend and abduct hand at wrist

64
Q

Extensor carpi radialis longus innervation

A

superficial branch of radial nerve

65
Q

Extensor carpi radialis brevis attachments

A

P: lateral epicondyle of humerus
D: base of 3rd metacarpal

66
Q

Extensor carpi radialis brevis actions

A

extend and abduct hand at wrist

67
Q

Extensor carpi radialis brevis innervation

A

deep branch of radial nerve

68
Q

Extensor digitorum attachments

A

P: lateral epicondyle of humerus
D: extensor expansions of digits 2-5

69
Q

Extensor digitorum actions

A

extend digits 2-5 at MCPs and IPs

70
Q

Extensor digitorum innervation

A

deep branch of radial nerve

71
Q

Extensor digiti minimi attachments

A

P: lateral epicondyle of humerus
D: extensor expansion of 5th digit

72
Q

Extensor digiti minimi action

A

extend 5th digit at MCP and IP

73
Q

Extensor digiti minimi innervation

A

deep branch of radial nerve

74
Q

Extensor carpi ulnaris attachments

A

P: lateral epicondyle of humerus
D: base of 5th metacarpal

75
Q

Extensor carpi ulnaris actions

A

extend, adduct hand at wrist

76
Q

Extensor carpi ulnaris innervation

A

deep branch of radial nerve

77
Q

Supinator attachments

A

P: lateral epicondyle of humerus
D: lateral posterior/anterior proximal 1/3 radius

78
Q

Supinator actions

A

supinate forearm

79
Q

Supinator innervation

A

deep branch of radial nerve

80
Q

Extensor indicis attachments

A

P: distal 1/3 ulna, post. interosseous membrane
D: extensor expansion of 2nd digit

81
Q

Extensor indicis actions

A

extend 2nd digit and hand at wrist

82
Q

Extensor indicis innervation

A

posterior interosseous nerve

83
Q

Abductor pollicis longus attachments

A

P: post. interosseous membrane, post. ulna/radius
D: base of 1st metacarpal

84
Q

Abductor pollicis longus actions

A

abduct thumb, extend @ CMC

85
Q

Abductor pollicis longus innervation

A

posterior interosseous nerve

86
Q

Extensor pollicis longus attachments

A

P: interosseous membrane, post. ulna
D: base of distal phalanx of thumb

87
Q

Extensor pollicis longus actions

A

extend distal phalanx, MCP, CMC of thumb

88
Q

Extensor pollicis longus innervation

A

posterior interosseous nerve

89
Q

Extensor pollicis brevis attachments

A

P: interosseous membrane, distal 1/3 post. radius
D: base of proximal phalanx

90
Q

Extensor pollicis brevis actions

A

extend proximal phalanx of @ MCP of thumb, extend CMC

91
Q

Extensor pollicis brevis innervation

A

posterior interosseous nerve

Muscles of back/upper extremity (12 decks)

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