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human anatomy muscles > Upper Limb Muscles > Flashcards

Upper Limb Muscles Flashcards

1
Q

what muscles stabilizes, elevates, depresses, retracts, and laterally rotates the shoulder?

A

trapezius

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2
Q

what muscle elevates scapula and medially rotates?

A

levator scapulae

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3
Q

what muscles stabilize shoulder and retract scapula?

A

rhomboid major and rhomboid minor

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4
Q

what muscle protracts and depresses scapula?

A

pectoralis minor

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5
Q

what muscle protracts scapula and is a prime mover in a forward actions

A

serratus anterior

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6
Q

action of trapezius?

A

stabilizes, elevates, depresses, retracts, and laterally rotates shoulder

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7
Q

action of levator scapulae

A

elevates scapula; and medially rotates

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8
Q

action of rhomboid major and rhomboid minor

A

stabilizes shoulder and retracts scapula

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9
Q

action of pectoralis minor

A

protract and depress scapula

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10
Q

action of serratus anterior

A

protract scapula; prime mover in all forward actions

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11
Q

what nerve innervates the trapezius?

A

CN XI (spinal accessory nerve)

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12
Q

what muscles are innervated by the dorsal scapular nerve?

A

levator scapulae, rhomboid major, and rhomboid minor

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13
Q

what nerve innervates the pectoralis minor?

A

medial pectoral nerve

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14
Q

what nerve innervates the serratus anterior?

A

long thoracic nerve

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15
Q

what muscle flexes, adducts, and medially rotates the humerus?

A

pectoralis major

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16
Q

what muscle extend, adducts, and medially rotates humerus?

A

latissimus dorsi

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17
Q

what muscle flexes, extends, abducts, and medially rotates humerus?

A

deltoid

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18
Q

what muscle flexes and medially rotates humerus?

A

coracobrachialis

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19
Q

what muscle extends and medially rotates humerus

A

teres major

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20
Q

what muscle initially abducts humerus?

A

supraspinatus

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21
Q

what muscle stabilizes shoulder and laterally rotates humerus?

A

infraspinatus

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22
Q

what muscles stabilize the shoulder?

A

infraspinatus, teres minor, subscapularis

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23
Q

what muscles medially rotate the humerus?

A

pectoralis major, latissimus dorsi, deltoid, corocobrachialis, teres major, and subscapularis

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24
Q

what muscles flex the humerus?

A

pectoralis major, deltoid, coracobrachialis

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25
Q

what muscles extend the humerus?

A

latissimus dorsi, deltoid, teres major

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26
Q

what muscles adduct the humerus?

A

pectoralis major, latissimus dorsi, teres minor

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27
Q

what muscles abduct the humerus?

A

pectoralis major, deltoid, supraspinatus

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28
Q

what muscles laterally rotate the humerus

A

infraspinatus and teres minor

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29
Q

what muscle stabilizes the shoulder and laterally rotates and adducts the humerus?

A

teres minor

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30
Q

what muscle stabilizes the shoulder and medially rotates the humerus?

A

subscaplaris

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31
Q

action of pectoralis major?

A

flex, adduct, medially rotate humerus

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32
Q

action of latissimus dorsi

A

extend, adduct, medially rotate humerus

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33
Q

action of deltoid

A

flex, extend, abduct, medially rotate humerus

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34
Q

action of coracobrachialis

A

flex and medially rotate humerus

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35
Q

action of teres major

A

extend and medially rotate humerus

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36
Q

action of supraspinatus

A

initial abduction of humerus

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37
Q

action of infraspinatus

A

stabilizes shoulder and laterally rotates humerus

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38
Q

action of teres minor

A

stabilizes shoulder and medially rotates humerus

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39
Q

action of subscapularis

A

stabilizes shoulder and medially rotates humerus

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40
Q

what nerves innervate the pectoralis major

A

medial and lateral pectoral nerve

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41
Q

what nerve innervates the latissimus dorsi?

A

thoracodorsal nerve

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42
Q

what nerve innervates the deltoid?

A

axillary nerve

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43
Q

what nerve innervates the coracobrachialis

A

musculocutaneous nerve

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44
Q

what nerve innervates the teres major

A

subscapular nerve

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45
Q

what nerve innervates the infraspinatus

A

suprascapular nerve

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46
Q

what nerve innervates the supraspinatus

A

suprascapular nerve

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47
Q

what brachial muscles does the suprascapular nerve innervate?

A

supraspinatus and infraspinatus

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48
Q

what nerve innervates the subscapularis

A

subscapular nerve

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49
Q

what muscle flexes at the elbow and shoulder and is a forceful supinator

A

biceps brachii

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50
Q

what muscle is the prime flexor of the elbow?

A

brachialis

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51
Q

what muscles extend the elbow

A

triceps brachi and anconeus

52
Q

what muscle flexes the elbow

A

brachioradialis

53
Q

what muscle supinates the forearm

54
Q

what muscles pronate the forearm

A

pronator quadratus and pronator teres

55
Q

action of biceps brachii

A

flexion at elbow and shoulder; forceful supinator

56
Q

action of brachialis

A

prime flexor of elbow

57
Q

action of triceps brachi

A

extends elbow

58
Q

action of anconeus

A

extends elbow

59
Q

action of brachioradialis

A

flexes elbow

60
Q

action of supinator

A

supinates forearm

61
Q

action of pronator quadratus

A

pronates forearm

62
Q

action of pronator teres

A

pronates forearm

63
Q

what muscles are innervated by the musclulocutaneous nerve?

A

biceps brachii and brachialis

64
Q

what muscles are innervated by the radial nerve

A

triceps brachi, anconeus, brachioradialis, supinator

65
Q

what nerve innervates pronator quadratus and pronator teres?

A

median nerve

66
Q

what muscle flexes the thumb?

A

flexor pollicis longus

67
Q

what muscle flexes the hand

A

palmaris longus

68
Q

what muscle flexes and abducts hand

A

flexor carpi radialis

69
Q

what muscle flexes proximal and middle phalanges (2-5) and flexes wrist?

A

flexor digitorum superficialis

70
Q

what muslce flexes phalanges 2-5 and flexes wrist

A

flexor digitorum profundus

71
Q

what muscle flexes and adducts wrist?

A

flexor carpi ulnaris

72
Q

action of flexor pollicis longus

A

flexes thumb

73
Q

action of palmaris longus

A

flexes hand

74
Q

action of flexor carpi radialis

A

flexes and abducts hand

75
Q

action of flexor digitorum superficialis

A

flexes proximal and middle phalanges (2-5) and flexes wrist

76
Q

action of flexor digitorum profundus

A

flexes phalanges 2-5, flexes wrist

77
Q

action of flexor carpi ulnaris

A

flexes and adducts wrist

78
Q

what nerve innvates flexor pollicis longus

A

median nerve

79
Q

what nerve innervates plamaris longus

A

median nerve

80
Q

what nerve innervates flexor carpi radialis

A

median nerve

81
Q

what nerve innervates flexor digitorum superficialis

A

median nerve

82
Q

what nerves innervate flexor digitorum profundus

A

median (digits 2 & 3) and ulnar nerve (digits 4 & 5)

83
Q

what nerve innervates flexor carpi ulnaris

A

ulnar nerve

84
Q

what muscle abducts the thumb

A

abductor pollicis longus

85
Q

what muscles extend the thumb

A

extensor pollicis longus and extensor pollicis brevis

86
Q

what muscles extend and abduct wrist

A

extensor carpi radialis longus, extensor carpi radialis brevis

87
Q

what muscle extends and adducts wrist

A

extensor carpi ulnaris

88
Q

what muscle extends writs and digits 2-5

A

extensor digitorum

89
Q

what muscle extends digit 2

A

extensor indicis

90
Q

what muscle extends digit 5

A

extensor digiti minimi

91
Q

action of abductor pollicis longus

A

abducts thumb

92
Q

action of extensor pollicis longus

A

extends thumb

93
Q

action of extensor pollicis brevis

A

extends thumb

94
Q

action of extensor carpi radialis longus and extensor carpi radialis brevis

A

extend and abduct wrist

95
Q

action of extensor carpi ulnaris

A

extends and adducts wrist

96
Q

action of extensor digitorum

A

extends wrist and digits 2-5

97
Q

action of extensor indicis

A

extends digit 2

98
Q

action of extensor digiti minimi

A

extends digit 5

99
Q

what nerve innervates digits and thumb and wrist

A

radial nerve

100
Q

what muscle flexes thumb

A

flexor pollicis brevis

101
Q

what muscle has action of opposition of thumb

A

opponens pollicus

102
Q

what muscle adducts thumb?

A

adductor pollicus

103
Q

what muscle abducts digit 5

A

abductor digiti minimi

104
Q

what muscle flexes digit 5

A

flexor digiti minimi

105
Q

what muscle opposes digit 5

A

opponens digiti minimi

106
Q

what muscle flexes the metacarpophalangeal joints and extends the interphalangeal joints?

A

lumbricals

107
Q

what muscle adducts the digits

A

palmar interosseous

108
Q

what muscle abducts digits

A

dorsal interosseous

109
Q

action of abductor pollicis brevis

A

abducts thumb

110
Q

action of flexor pollicis brevis

A

flexes thumb

111
Q

action of opponens pollicus

A

opposition of thumb

112
Q

action of adductor pollicus

A

adducts thumb

113
Q

action of abductor digiti minimi

A

abducts digit 5

114
Q

action of flexor digiti minimi

A

flexes digit 5

115
Q

action of opponens digiti minimi

A

opposition of digit 5

116
Q

action of lumbricals

A

flex the metacarpophalangeal joints and extend the interphalangeal joints

117
Q

action of palmar interosseous

A

adducts digits

118
Q

action of dorsal interosseous

A

abducts digits

119
Q

waht nerve innervates abductor pollicis brevis

A

median nerve

120
Q

what nerve innervates flexor pollicis brevis

A

median nerve

121
Q

what nerve innervates opponens pollicus

A

median nerve

122
Q

what nerve innervates adductor pollicus

A

ulnar nerve

123
Q

what nerve innervates abductor digiti minimi

A

ulnar nerve

124
Q

what nerve innervates flexor digiti minimi

A

ulnar nerve

125
Q

what nerve innervates opponens digiti minimi

A

ulnar nerve

126
Q

what nerves innervate the lumbricals

A

median (digits 2 & 3) and ulnar nerve (digits 4 & 5)

127
Q

what nerve innervates plamar and dorsal interosseous muscles

A

ulnar nerve

human anatomy muscles (5 decks)

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