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Musculoskeletal Anatomy > OIA UE Part 1 > Flashcards

OIA UE Part 1 Flashcards

1
Q

trapezius origin

A
  1. external occipital protuberance
  2. ligamentum nuchae
  3. spinous processes of C1-T12
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2
Q

trapezius insertion

A
  1. posterior lateral clavicle
  2. medial surface of acromion process
  3. scapular spine
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3
Q

trapezius action

A

upper part: elevation, adduction and upward rotation of shoulder girdle
middle part: scapular adduction
lower part: depression, adduction and upward rotation of shoulder girdle

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4
Q

trapezius innervation

A

spinal accessory CN XI

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5
Q

latissimus dorsi origin

A
  1. spinous processes of T7-S5

2. posterior iliac crest

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6
Q

latissimus dorsi insertion

A

intertubercular groove

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7
Q

latissimus dorsi action

A
  1. shoulder adduction
  2. shoulder extension (from flexed position)
  3. shoulder internal rotation
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8
Q

latissimus dorsi innervation

A

thoracodorsal

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9
Q

levator scapulae origin

A

transverse processes of C1-C4

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10
Q

levator scapulae insertion

A
  1. superior angle of scapulae

2. medial border of scapula (superior to scapular spine)

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11
Q

levator scapulae action

A
  1. scapular elevation
  2. lateral flexion of neck
  3. downward rotation of scapula
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12
Q

levator scapulae innervation

A

dorsal scapular

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13
Q

rhomboid minor origin

A

spinous processes of C7 & T1

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14
Q

rhomboid minor insertion

A

medial border of scapula (at level of scapular spine)

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15
Q

rhomboid minor action

A
  1. scapular adduction

2. downward rotation of scapula

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16
Q

rhomboid minor innervation

A

dorsal scapular

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17
Q

rhomboid major origin

A

spinous processes of T2-T5

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18
Q

rhomboid major insertion

A

medial border of scapula (inferior to scapular spine)

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19
Q

rhomboid major action

A
  1. scapular adduction

2. downward rotation of scapula

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20
Q

rhomboid major innervation

A

dorsal scapular

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21
Q

serratus anterior origin

A

anterolateral surface of upper 8 or 9 ribs

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22
Q

serratus anterior insertion

A

medial border of scapula, costal aspect

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23
Q

serratus anterior action

A
  1. scapular abduction
  2. upward rotation of scapula
  3. functionally controls winging
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24
Q

serratus anterior innervation

A

long thoracic

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25
Q

subclavius origin

A

first rib

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26
Q

subclavius insertion

A

inferior surface of clavicle

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27
Q

subclavius action

A

depresses and stabilizes clavicle

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28
Q

subclavius innervation

A

nerve to subclavius

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29
Q

pectoralis major origin

A
  1. medial clavicle
  2. sternum
  3. ribs 2-6
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30
Q

pectoralis major insertion

A

intertubercular groove (lateral lip)

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31
Q

pectoralis major action

A
  1. shoulder adduction
  2. shoulder internal rotation
  3. shoulder horizontal adduction
  4. shoulder flexion (from extended position)
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32
Q

pectoralis major innervation

A

medial and lateral pectoral

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33
Q

pectoralis minor origin

A

anterior surface of ribs 3-5 near cartilage

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34
Q

pectoralis minor insertion

A

coracoid process

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35
Q

pectoralis minor action

A
  1. scapular depression
  2. anterior tilt of scapula
  3. scapular abduction
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36
Q

pectoralis minor innervation

A

medial pectoral

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37
Q

deltoid origin

A

anterior: lateral clavicle
middle: acromion process
posterior: scapular spine

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38
Q

deltoid insertion

A

deltoid tuberosity

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39
Q

deltoid action

A

all parts: shoulder abduction
anterior part: flexion, internal rotation, and horizontal adduction of the shoulder
posterior part: extension, external rotation and horizontal abduction of shoulder

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40
Q

deltoid innervation

A

axillary

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41
Q

supraspinatus origin

A

supraspinous fossa

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42
Q

supraspinatus insertion

A
  1. superior facet of greater tubercle

2. shoulder joint capsule

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43
Q

supraspinatus action

A

shoulder abduction

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44
Q

supraspinatus innervation

A

suprascapular

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45
Q

infraspinatus origin

A

infraspinous fossa

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46
Q

infraspinatus insertion

A
  1. medial facet of greater tubercle

2. shoulder joint capsule

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47
Q

infraspinatus action

A

shoulder external rotation

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48
Q

infraspinatus innervation

A

suprascapular

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49
Q

teres minor origin

A

lateral border of scapula, middle third

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50
Q

teres minor insertion

A
  1. inferior facet of greater tubercle

2. shoulder joint capsule

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51
Q

teres minor action

A

shoulder external rotation

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52
Q

teres minor innervation

A

axillary

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53
Q

subscapularis origin

A

subscapular fossa

54
Q

subscapularis insertion

A
  1. lesser tubercle

2. shoulder joint capsule

55
Q

subscapularis action

A

shoulder internal rotation

56
Q

subscapularis innervation

A

upper and lower subscapular

57
Q

teres major origin

A

lateral border of scapula inferior part

58
Q

teres major insertion

A

intertubercular groove (medial lip)

59
Q

teres major action

A
  1. shoulder internal rotation
  2. shoulder extension (from flexed position)
  3. shoulder adduction
60
Q

teres major innervation

A

lower subscapular

61
Q

coracobrachialis origin

A

coracoid process

62
Q

coracobrachialis insertion

A

mid-shaft of humerus, medial surface

63
Q

coracobrachialis action

A
  1. shoulder flexion

2. shoulder adduction

64
Q

coracobrachialis innervation

A

musculocutaneous

65
Q

biceps brachii origin

A

long head: supraglenoid tubercle

short head: coracoid process

66
Q

biceps brachii insertion

A
  1. radial tuberosity

2. bicipital aponeurosis (lacertus fibrosus)

67
Q

biceps brachii action

A
  1. elbow flexion
  2. supination
  3. shoulder flexion
68
Q

biceps brachii innervation

A

musculocutaneous

69
Q

brachialis origin

A

anterior humerus distal half

70
Q

brachialis insertion

A

ulnar tuberosity

71
Q

brachialis action

A

elbow flexion

72
Q

brachialis innervation

A

musculocutaneous and radial

73
Q

triceps brachii origin

A

long head: infraglenoid tubercle
lateral head: proximal half of posterior humerus
medial head: distal posterior humerus

74
Q

triceps brachii insertion

A

olecranon process

75
Q

triceps brachii action

A

elbow extension

long head: shoulder adduction and shoulder extension (from flexed)

76
Q

triceps brachii innervation

A

radial

77
Q

anconeus origin

A

lateral epicondyle of humerus posterior surface

78
Q

anconeus insertion

A

olecranon process and shaft of ulna

79
Q

anconeus action

A
  1. elbow extension

2. tension of elbow joint capsule

80
Q

anconeus innervation

A

radial

81
Q

pronator teres origin

A

humeral head: medial epicondyle via common flexor tendon

ulnar head: coronoid process

82
Q

pronator teres insertion

A

middle shaft of radius lateral surface

83
Q

pronator teres action

A

pronation

elbow flexion

84
Q

pronator teres innervation

A

median

85
Q

flexor carpi radialis origin

A

medial epicondyle of humerus via common flexor tendon

86
Q

flexor carpi radialis insertion

A

bases of metacarpals 2-3, palmar side

87
Q

flexor carpi radialis action

A

wrist flexion
radial deviation
elbow flexion

88
Q

flexor carpi radialis innervation

A

median

89
Q

palmaris longus origin

A

medial epicondyle of humerus via common flexor tendon

90
Q

palmaris longus insertion

A

palmar aponeurosis

flexor retinaculum

91
Q

palmaris longus action

A

wrist flexion

elbow flexion

92
Q

palmaris longus innervation

A

median

93
Q

flexor carpi ulnaris origin

A

humeral head: medial epicondyle via common flexor tendon

ulnar head: proximal posterior ulna

94
Q

flexor carpi ulnaris insertion

A

splits to both sides of the base of each middle phalanx of digits 2-5

95
Q

flexor carpi ulnaris action

A

wrist flexion
ulnar deviation
elbow flexion

96
Q

flexor carpi ulnaris innervation

A

ulnar

97
Q

flexor digitorum superficialis origin

A

humeral-ulnar head: medial epicondyle via common flexor tendon and coronoid process of ulna
radial head: oblique line

98
Q

flexor digitorum superficialis insertion

A

splits to both sides of the base of each middle phalanx of digits 2-5

99
Q

flexor digitorum superficialis action

A

finger flexion
wrist flexion
elbow flexion

100
Q

flexor digitorum superficialis innervation

A

median

101
Q

flexor digitorum profundus origin

A

anterior medial surface of proximal half of ulna

102
Q

flexor digitorum profundus insertion

A

distal phalanges of digits 2-5

103
Q

flexor digitorum profundus action

A

finger flexion

wrist flexion

104
Q

flexor digitorum profundus innervation

A

ulnar (medial portion) & median (lateral portion)

105
Q

flexor pollicis longus origin

A

middle of anterior radius and interosseous membrane

106
Q

flexor pollicis longus insertion

A

base of the distal phalanx of pollex palmar surface

107
Q

flexor pollicis longus action

A

flexion of pollex

MCP, CMC, and wrist felxion

108
Q

flexor pollicis longus innervation

A

median

109
Q

pronator quadratus origin

A

distal 1/4 anteromedial surface of ulna

110
Q

pronator quadratus insertion

A

distal 1/4 anterolateral surface of radius

111
Q

pronator quadratus action

A

pronation

112
Q

pronator quadratus innervation

A

median

113
Q

brachioradialis origin

A

lateral supracondylar ridge of humerus

114
Q

brachioradialis insertion

A

styloid process of radius

115
Q

brachioradialis actions

A

elbow flexion
supination when forearm is pronated
pronation when forearm is supinated

116
Q

brachioradialis innervation

A

radial

117
Q

supinator origin

A

lateral epicondyle of humerus

supinator crest

118
Q

supinator insertion

A

proximal anterolateral surface of radius

119
Q

supinator action

A

supination

120
Q

supinator innervation

A

radial

121
Q

extensor carpi radialis longus origin

A

lateral supracondylar ridge of humerus

122
Q

extensor carpi radialis longus insertion

A

base of 2nd metacarpal, dorsal surface

123
Q

extensor carpi radialis longus action

A

wrist extension
radial deviation
elbow flexion

124
Q

extensor carpi radialis longus innervation

A

radial

125
Q

extensor carpi radialis brevis action

A

lateral epicondyle of humerus via common extensor tendon

126
Q

extensor carpi radialis brevis insertion

A

base of 3rd metacarpal, dorsal surface

127
Q

extensor carpi radialis brevis action

A

wrist extension
radial deviation
elbow flexion

128
Q

extensor carpi radialis brevis innervation

A

radial

129
Q

abductor pollicis longus origin

A

posterior surface of ulna and radius

interosseous membrane

130
Q

abductor pollicis longus insertion

A

base of 1st metacarpal lateral surface

131
Q

abductor pollicis longus action

A

abduction of 1st metacarpal
radial deviation
extension of pollex

132
Q

abductor pollicis longus innervation

A

radial

Musculoskeletal Anatomy (7 decks)

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