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DPT 7015 Clinical Anatomy > Quiz 5: Upper Extremity > Flashcards

Quiz 5: Upper Extremity Flashcards

1
Q

Biceps brachii long head origin

A

supraglenoid tubercle of scapula

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2
Q

Biceps brachii long head insertion

A

radial tuberosity and bicipital aponeurosis

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3
Q

Biceps brachii long head action

A

Elbow joint: flexion; supination

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4
Q

Biceps brachii short head origin

A

coracoid process of scapula

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5
Q

Biceps brachii short head insertion

A

radial tuberosity and bicipital aponeurosis

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6
Q

Biceps brachii short head action

A

Shoulder joint: flexion; stabilization of humeral head during deltoid contraction; abduction and internal rotation of humerus

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7
Q

Brachialis origin

A

Humerus (distal half of anterior surface)

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8
Q

Brachialis insertion

A

Ulnar tuberosity and bicipital tuberosity

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9
Q

Brachialis action

A

Flexion at elbow joint

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10
Q

Coracobrachialis origin

A

Scapula (coracoid process)

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11
Q

Coracobrachialis insertion

A

Humerus (in line with crest of lesser tubercle)

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12
Q

Coracobrachialis action

A

Flexion, adduction, internal rotation

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13
Q

Triceps brachii long head origin

A

Scapula (infraglenoid tubercle)

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14
Q

Triceps brachii medial head origin

A

Posterior humerus, distal to radial groove; medial intermuscular septum

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15
Q

Triceps brachii lateral head origin

A

posterior humerus, proximal to radial groove; lateral intermuscular septum

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16
Q

Triceps brachii insertion

A

olecranon of ulna

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17
Q

Triceps brachii action

A

Elbow joint: extension - shoulder joint, long head: extension and adduciton

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18
Q

Anconeus origin

A

Lateral epicondyle of humerus (variance: posterior joint capsule)

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19
Q

Anconeus insertion

A

olecranon process of ulna (radial surface)

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20
Q

Anconeus action

A

Extends elbow and tightens its joint

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21
Q

Extensor digitorum origin

A

Common head (lateral epicondyle of humerus)

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22
Q

Extensor digitorum insertion

A

Dorsal digital expansion of 2nd to 5th digits

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23
Q

Extensor digitorum action

A

Wrist: extension - MCP, PIP, and DIP of 2nd to 5th digits: extension/abduction of fingers

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24
Q

Extensor digiti minimi origin

A

Common head (lateral epicondyle of humerus)

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25
Q

extensor digiti minimi insertion

A

dorsal digital expansion of 5th digit

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26
Q

Extensor digiti minimi action

A

Wrist: extension, ulnar abduction of hand MCP, PIP, and DIP of 5th digit: extension and abduction of 5th digit

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27
Q

Extensor carpi ulnaris origin

A

Common head (lateral epicondyle of humerus) - ulnar head (dorsal surface)

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28
Q

Extensor carpi ulnaris insertion

A

Base of 5th metacarpal

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29
Q

Extensor carpi ulnaris action

A

Wrist: extension, adduction (ulnar deviation) of hand

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30
Q

Supinator origin

A

Olecranon, lateral epicondyle of humerus, radial collateral ligament, annular ligament of radius

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31
Q

Supinator insertion

A

Radius (between radial tuberosity and insertion of pronation teres)

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32
Q

Supinator action

A

Radioulnar joints: supination

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33
Q

Abductor Pollicis Longus origin

A

Radius and ulna (dorsal surface, interosseous membrane)

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34
Q

abductor pollicis Longus insertion

A

Base of 1st metacarpal

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35
Q

Abductor pollicis Longus action

A

Radiocarpal joint: abduction of the hand - carpometacarpal joint of thumb: abduction

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36
Q

Extensor pollicis brevis origin

A

Radius (posterior surface) and interosseous membrane

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36
Q

Extensor pollicis brevis insertion

A

Base of distal phalanx of thumb

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37
Q

Extensor pollicis brevis action

A

Radiocarpal joint: abduction (radial deviation) of hand - carpometacarpal and MCP of thumb: extension

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38
Q

Extensor pollicis Longus origin

A

ulna and interosseus membrane

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39
Q

Extensor pollicis Longus insertion

A

Base of distal phalanx of thumb

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40
Q

Extensor pollicis Longus action

A

Wrist: extension and abduction (radial deviation) of hand - carpometacarpal of thumb: addiction - MCP and IP of thumb: extension

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41
Q

Extensor indices origin

A

Ulna (posterior surface) and interosseous membrane

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42
Q

Extensor indices insertion

A

posterior digital expansion of 2nd digit

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43
Q

Extensor indices action

A

Wrist: extension - MCP, PIP, and DIP of 2nd digit: extension

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44
Q

Brachioradialis origin

A

Distal humerus (distal surface), lateral intermuscular septum

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45
Q

Brachioradialis insertion

A

Styloid process of the radius

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46
Q

Brachioradialis action

A

Elbow: flexion - Forearm: semipronation

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47
Q

Extensor carpi radialis Longus origin

A

Lateral supracondylar ridge of distal humerus, later intermuscular septum

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48
Q

Extensor carpi radialis longus insertion

A

2nd metacarpal (base)

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49
Q

Extensor carpi radialis Longus action

A

Elbow: weak flexion - wrist: extension and abduction

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50
Q

Extensor carpi radialis brevis origin

A

Lateral epicondyle of humerus

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51
Q

Extensor carpi radialis brevis insertion

A

3rd metacarpal (base)

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52
Q

Extensor carpi radialis brevis action

A

Elbow: weak flexion - Wrist: extension and abduction

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53
Q

Pronator teres origin

A

humeral head: medial epicondyle of humerus

ulnar head: coronoid process

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54
Q

Pronator teres insertion

A

Lateral radius (distal to Supinator insertion)

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55
Q

Pronator teres action

A

Elbow: weak flexor
forearm: pronation

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56
Q

Flexor carpi radialis origin

A

Medial epicondyle of humerus

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57
Q

Flexor carpi radialis insertion

A

Base of 2nd metacarpal (variance: base of 3rd metacarpal)

58
Q

Flexor carpi radialis action

A

Wrist: flexion and abduction (radial deviation) of hand

59
Q

Palmaris Longus origin

A

Medial epicondyle of humerus

60
Q

Palmaris Longus insertion

A

Palmar aponeurosis

61
Q

Palmaris Longus action

A

Elbow: weak flexion
Wrist: flexion tightens palmar aponeurosis

62
Q

Flexor carpi ulnaris origin

A

Humeral head: medial epicondyle

ulnar head: olecranon

63
Q

Flexor carpi ulnaris insertion

A

Pisiform, hook of hamate; base of 5th metacarpal

64
Q

Flexor carpi ulnaris action

A

Wrist: flexion and adduction (ulnar deviation) of hand

65
Q

Flexor digitorum superficialis origin

A

Humeral-ulnar head: medial epicondyle of humerus

radial head: upper half of anterior border of radius

66
Q

Flexor digitorum superficialis insertion

A

Sides of middle phalanges of 2nd to 5th digits

67
Q

Flexor digitorum superficialis action

A

Elbow: weak flexor

wrist, MCP, and PIP joints of 2nd to 5th digits: flexion

68
Q

Flexor digitorum profundus origin

A

Ulna (2/3 of flexor surface) and interosseous membrane

69
Q

Flexor digitorum profundus insertion

A

Distal phalanges of 2nd to 5th digits (palmar surface)

70
Q

Flexor digitorum profundus action

A

wrist, MCP, PIP, and DIP of 2nd to 5th digits: flexion

71
Q

Flexor pollicis Longus origin

A

Radius (midanterior surface) and adjacent interosseous membrane

72
Q

Flexor pollicis Longus insertion

A

Distal phalanx of thumb (palmar surface)

73
Q

Flexor pollicis longus action

A

Wrist: flexion and abduction (radial deviation) of hand
carpometacarpal of thumb: flexion
MCP and IP of thumb: flexion

74
Q

Pronator quadratus origin

A

Distal quarter of unla (anterior surface)

75
Q

Pronator quadratus insertion

A

distal quarter of radius (anterior surface)

76
Q

pronator quadratus action

A

Hand: pronation

distal radioulnar joint: stabilization

77
Q

Lumbricals (1st and 2nd) origin

A

Tendons of flexor digitorum profundus (radial sides)

78
Q

Lumbricals (1st and 2nd) origin

A

Tendons of flexor digitorum profundus (radial sides)

79
Q

Lumbricals (1st) insertion

A

2nd digit (dde)

80
Q

Lumbricals (2nd) insertion

A

3rd digit (dde)

81
Q

Lumbricals (3rd and 4th) origin

A

Tendons of flexor digitorum profundus (Bipennate from medial and lateral sides)

82
Q

Lumbraicals (3rd) insertion

A

4th digit (dde)

83
Q

Lumbraicals (4th) insertion

A

5th digit (dde)

84
Q

Lumbricals action

A

2nd to 5th digits:
MCP joints: flexion
Proximal and distal IP joints: extension

85
Q

Dorsal interossei (1st) origin

A

1st and 2nd metacarpals (adjacent sides, two heads)

86
Q

Dorsal interossei (1st) insertion

A 
2nd digit (dde)
2nd proximal phalanx (radial side)
87
Q

Dorsal interossei (2nd) origin

A

2nd and 3rd metacarpals (adjacent sides, two heads)

88
Q

Dorsal interossei (2nd) insertion

A 
3rd digit (dde)
3rd proximal phalanx (radial side)
89
Q

Dorsal interossei (3rd) origin

A

3rd and 4th metacarpals (adjacent sides, two heads)

90
Q

Dorsal interossei (3rd) insertion

A 
3rd digit (dde)
3rd proximal phalanx (ulnar side)
91
Q

Dorsal interossei (4th) origin

A

4th and 5th metacarpals (adjacent sides, two heads)

92
Q

Dorsal interossei (4th) insertion

A 
4th digit (dde)
4th proximal phalanx (ulnar side)
93
Q

Dorsal interossei action

A

2nd to 4th digits:
MCP joints: flexion
proximal and distal IP joints: extension and abduction from 3rd digit

94
Q

Palmar interossei (1st) origin

A

2nd metacarpal (ulnar side)

95
Q

Palmar interossei (1st) insertion

A 
2nd digit (dde)
2nd proximal phalanx (base)
96
Q

Palmar interossei (2nd) origin

A

4th metacarpal (radial side)

97
Q

Palmar interossei (2nd) insertion

A 
4th digit (dde)
4th proximal phalanx (base)
98
Q

Palmar interossei (3rd) origin

A

5th metacarpal (radial side)

99
Q

Palmar interossei action

A

2nd, 4th, and 5th digits:
MCP joints: flexion
proximal and distal IP joints: extension and adduciton toward 3rd digit

100
Q

Opponens digiti minimi origin

A

Hook of hamate, flexor retinaculum

101
Q

Opponens digiti minimi insertion

A

5th metacarpal (ulnar border)

102
Q

Opponens digiti minimi action

A

Draws metacarpal in palmar direction (opposition)

103
Q

Flexor digiti minimi brevis origin

A

Hook of hamate, flexor retinaculum

104
Q

Flexor digiti minimi brevis insertion

A

5th proximal phalanx (base)

105
Q

flexor digiti minimi brevis action

A

MCP joint of little finger: flexion

106
Q

Abductor digiti minimi origin

A

Pisiform bone

107
Q

Abductor digiti minimi insertion

A

5th proximal phalanx (ulnar base) and dorsal digital expansion of 5th digit

108
Q

Abductor digiti minimi action

A

MCP joint to little finger: flexion and abduction of little finger
PIP and DIP joints of little finger: extension

109
Q

Palmaris brevis origin

A

Palmar aponeurosis (ulnar border)

110
Q

Palmaris brevis insertion

A

Skin of hypothecated eminence

111
Q

Palmaris brevis action

A

Tightens the palmar aponeurosis (protective function)

112
Q

Adductor pollicis origin

A

Transverse head: 3rd metacarpal (palmar surface)

oblique head: capitate bone, 2nd and 3rd metacarpals (bases)

113
Q

Adductor pollicis insertion

A

thumb (base of proximal phalanx) via ulnar sesamoid

114
Q

Adductor pollicis action

A

CMC joint of thumb: adduction

MCP joint of thumb: flexion

115
Q

Abductor pollicis brevis origin

A

scaphoid bone and trapezium, flexor retinaculum

116
Q

Abductor pollicis brevis insertion

A

thumb (base of proximal phalanx) via radial sesamoid

117
Q

Abductor pollicis brevis action

A

CMC joint of thumb: abduction

118
Q

Flexor pollicis brevis origin

A

Superficial head: flexor retinaculum

deep head: capitate bone, trapezium

119
Q

Flexor pollicis brevis insertion

A

thumb (base of proximal phalanx) via radial sesamoid

120
Q

Flexor pollicis brevis action

A

CMC joint of thumb: flexion

121
Q

Opponens pollicis origin

122
Q

Opponens pollicis insertion

A

1st metacarpal bone (radial border)

123
Q

Opponens pollicis action

A

CMC joint of thumb: opposition

124
Q

Teres major origin **

A

Scapula (inferior angle)

125
Q

Teres major insertion **

A

crest of lesser tubercle of the humerus (anterior angle)

126
Q

Teres major action **

A

internal rotation, adduction, extension

127
Q

Deltoid origin

A

Clavicular portion: lateral 1/3 of clavicle
acromial portion: acromion
spinal portion: scapular spine

128
Q

Deltoid insertion

A

humerus (deltoid tuberosity)

129
Q

Deltoid action

A

Clavicular part: flexion, internal rotation, adduction
acromial part: abduction
Spinal part: extension, external rotation, adduction

130
Q

Supraspinatus origin

A

supraspinous fossa of scapula

131
Q

Supraspintus insertion

A

Humerus (greater tubercle)

132
Q

Supraspinatus action

133
Q

Infraspinatus origin

A

infraspinous fossa of scapula

134
Q

Infraspinatus insertion

A

greater tubercle of humerus

135
Q

Infraspinatus action

A

External rotation

136
Q

Teres minor origin

A

lateral border of scapula

137
Q

Teres minor insertion

A

greater tubercle of humerus

138
Q

Teres minor action

A

External rotation, weak adduction

139
Q

Teres minor action

A

External rotation, weak adduction

140
Q

Subscapularis origin

A

subscapular fossa of scapula

141
Q

Subscapularis insertion

A

lesser tubercle of humerus

142
Q

subscapularis action

A

Internal rotation

DPT 7015 Clinical Anatomy (9 decks)

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