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Anatomy > O's and I's Upper Extremity Part 2 > Flashcards

O's and I's Upper Extremity Part 2 Flashcards

1
Q

Flexor Digitorum Superficialis Origin

A
  1. Humeral-Ulnar Head: Medial Epicondyle via the Common Flexor Tendon
  2. Radial Head: Oblique Line of Radius
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2
Q

Flexor Digitorum Superficialis Insertion

A

Splits to both sides of the base of each Middle Phalanx of the 4 Fingers

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3
Q

Flexor Digitorum Superficialis Action

A
  1. Flexes the Proximal and Middle IP Joints

2. Flexes the Wrist if Fingers are Extended

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4
Q

Flexor Digitorum Superficialis Nerve

A

Median

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5
Q

Flexor Digitorum Profundus Origin

A

Anterior and Medial Surface of Proximal 3/4 Ulna

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6
Q

Flexor Digitorum Profundus Insertion

A

Distal Phalanx of Medial 4 Digits (through FDS tunnel)

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7
Q

Flexor Digitorum Profundus Action

A
  1. Flexes the Distal IP Joints and in so doing Flexes the Proximal and Middle IP Joints
  2. Flexes the Wrist if Fingers are Extended
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8
Q

Flexor Digitorum Profundus Nerve

A

Medial Portion: Ulnar

Lateral Portion: Median

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9
Q

Flexor Pollicis Longus Origin

A

Middle of Anterior Radius and Interosseus Membrane (sometime as high as the Coronoid Process of Ulna)

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10
Q

Flexor Pollicis Longus Insertion

A

Palmar Aspect of Base of the Distal Phalanx of Thumb

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11
Q

Flexor Pollicis Longus Action

A
  1. Flexes the Distal Phalanx of Thumb

2. Flexes the other joints to the Wrist (MCP, CMC)

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12
Q

Flexor Pollicis Longus Nerve

A

Median

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13
Q

Pronator Quadratus Origin

A

Distal 1/4 Anteromedial Surface of Ulna

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14
Q

Pronator Quadratus Insertion

A

Distal 1/4 Anterolateral Surface of Radius

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15
Q

Pronator Quadratus Action

A

Pronates the Forearm and Hand

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16
Q

Pronator Quadratus Nerve

A

Median

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17
Q

Brachioradialis Origin

A

Lateral Supracondylar Ridge of Humerus

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18
Q

Brachioradialis Insertion

A
  1. Styloid Process of Radius

2. Lateral Side of Distal 1/3 of Radius

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19
Q

Brachioradialis Action

A
  1. Flexes the Elbow
  2. Pronates the Forearm when Supinated
  3. Supinates the Forearm when Pronated
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20
Q

Brachioradialis Nerve

A

Radial

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21
Q

Extensor Carpi Radialis Longus Origin

A

Lower Lateral Supracondylar Ridge (below Brachioradialis)

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22
Q

Extensor Carpi Radialis Longus Insertion

A

Base of 2nd Metacarpal (dorsum)

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23
Q

Extensor Carpi Radialis Longus Action

A
  1. Extends the Wrist
  2. Radially Deviates Wrist
  3. Weakly Flexes the Elbow
  4. Weakly Supinates the Forearm
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24
Q

Extensor Carpi Radialis Longus Nerve

A

Radial

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25
Q

Extensor Carpi Radialis Brevis Origin

A

Lateral Epicondyle via the Common Extensor Tendon

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26
Q

Extensor Carpi Radialis Brevis Insertion

A

Base of 3rd Metacarpal (dorsum)

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27
Q

Extensor Carpi Radialis Brevis Action

A
  1. Extends Wrist

2. Radially Deviates Wrist

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28
Q

Extensor Carpi Radialis Brevis Nerve

A

Radial

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29
Q

Extensor Carpi Ulnaris Origin

A

Lateral Epicondyle via the Common Extensor Tendon

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30
Q

Extensor Carpi Ulnaris Insertion

A

Medial Side of Base of the 5th Metacarpal

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31
Q

Extensor Carpi Ulnaris Action

A
  1. Extends Wrist

2. Ulnarly Deviates Wrist

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32
Q

Extensor Carpi Ulnaris Nerve

A

Radial

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33
Q

Extensor Digitorum Origin

A

Lateral Epicondyle via the Common Extensor Tendon

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34
Q

Extensor Digitorum Insertion

A

Base of Middle Phalanx of the Four Fingers (central band) and Base of Distal Phalanx (lateral bands)

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35
Q

Extensor Digitorum Action

A
  1. Extends 4 Medial Digits
  2. Extends Wrist (if fingers are flexed)
  3. Abducts the Digits (during extension)
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36
Q

Extensor Digitorum Nerve

A

Radial

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37
Q

Extensor Digiti Minimi Origin

A
  1. Lateral Epicondyle via the Common Extensor Tendon

2. Ulnar Aspect of Extensor Digitorum

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38
Q

Extensor Digiti Minimi Insertion

A

Base of Middle Phalanx of the 5th Finger (central band) and Base of Distal Phalanx (lateral bands)

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39
Q

Extensor Digiti Minimi Action

A
  1. Extends the 5th Digit

2. Abducts the 5th Digit

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40
Q

Extensor Digiti Minimi Nerve

A

Radial

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41
Q

Extensor Indicis Origin

A
  1. Posterior Surface of Ulna

2. Interosseus Membrane

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42
Q

Extensor Indicis Insertion

A

Base of Middle and Distal Phalanx of Index Finger

43
Q

Extensor Indicis Action

A
  1. Extends 2nd Digit
  2. Adducts 2nd Digit
  3. Assists to Extend the Wrist
  4. Stabilizes McP Joint for Flexion of IP solely
44
Q

Extensor Indicis Nerve

45
Q

Supinator Origin

A
  1. Lateral Epicondyle
  2. Supinator Crest
  3. Radial Collateral and Annular Ligament
46
Q

Supinator Insertion

A

Proximal and Anterolateral Surface of Radius

47
Q

Supinator Action

A

Supinates the Forearm

48
Q

Supinator Nerve

49
Q

Extensor Pollicis Longus Origin

A
  1. Posterior Surface of Ulna

2. Interosseus Membrane

50
Q

Extensor Pollicis Longus Insertion

A

Distal Phalanx of Thumb

51
Q

Extensor Pollicis Longus Action

A
  1. Extends Distal Phalanx of Thumb
  2. Extends Proximal Phalanx of Thumb
  3. Assists to Extend the Wrist if Fingers are Flexed
52
Q

Extensor Pollicis Longus Nerve

53
Q

Extensor Pollicis Brevis Origin

A
  1. Posterior Surface of Radius (below Abductor Pollicis Longus)
  2. Interosseus Membrane
54
Q

Extensor Pollicis Brevis Insertion

A

Base of Proximal Phalanx of Thumb

55
Q

Extensor Pollicis Brevis Action

A
  1. Extends Proximal Phalanx and 1st Metacarpal of the Thumb

2. Radially Deviates Wrist

56
Q

Extensor Pollicis Brevis Nerve

57
Q

Abductor Pollicis Longus Origin

A
  1. Posterior Surface of Ulna and Radius

2. Interosseus Membrane

58
Q

Abductor Pollicis Longus Insertion

A

Lateral Aspect of Base of 1st Metacarpal

59
Q

Abductor Pollicis Longus Action

A
  1. Abducts 1st Metacarpal
  2. Assists to Extend and Rotate Thumb
  3. Radially Deviates Wrist
  4. Flexes Wrist
60
Q

Abductor Pollicis Longus Nerve

61
Q

Abductor Digiti Minimi Origin

A

Pisiform and Tendon of Flexor Carpi Ulnaris

62
Q

Abductor Digiti Minimi Insertion

A

Medial Base of Proximal Phalanx of 5th Finger

63
Q

Abductor Digiti Minimi Action

A
  1. Abducts the 5th Digit

2. Assists to Flex the 5th Digit

64
Q

Abductor Digiti Minimi Nerve

65
Q

Flexor Digiti Minimi Brevis Origin

A

Hamulus of Hamate and Transverse Carpal Ligament

66
Q

Flexor Digiti Minimi Brevis Insertion

A

Ulnar Side of Base of Proximal Phalanx of 5th Finger

67
Q

Flexor Digiti Minimi Brevis Action

A

Flexes 5th Digit

68
Q

Flexor Digiti Minimi Brevis Nerve

69
Q

Opponens Digiti Minimi Origin

A

Hamulus of Hamate and Flexor Retinaculum

70
Q

Opponens Digiti Minimi Insertion

A

Ulnar Side of 5th Metacarpal

71
Q

Opponens Digiti Minimi Action

A
  1. Opposes 5th Digit with the Thumb

2. Assists to “Cup the Palm”

72
Q

Opponens Digiti Minimi Nerve

73
Q

Palmar Interossei Origin

A

1st: Ulnar Side of Palmar Surface of Base of 1st Metacarpal
2nd: Ulnar Side of 2nd Metacarpal Bone
3rd: Radial Side of 4th Metacarpal
4th: Radial Side of 5th Metacarpal

74
Q

Palmar Interossei Insertion

A

1st: Sesamoid Bone on Ulnar Side of Base of Proximal Phalanx of Thumb
2nd: Ulnar Side of Proximal Phalanx of 2nd Finger
3rd: Radial Side of Proximal Phalanx of 4th Finger
4th: Radial Side of Proximal Phalanx of 5th Finger

75
Q

Palmar Interossei Action

A
  1. Adducts the Fingers

2. Flexes Fingers at the McP while the IP Joints are Extended

76
Q

Palmar Interossei Nerve

77
Q

Dorsal Interossei Origin

A

By Two Heads from Adjacent Sides of Metacarpal Bones

78
Q

Dorsal Interossei Insertion

A

1st: Radial Side of Proximal Phalanx of 2nd Finger
2nd: Radial Side of Proximal Phalanx of 3rd Finger
3rd: Ulnar Side of Proximal Phalanx of 3rd Finger
4th: Ulnar Side of Proximal Phalanx of 4th Finger

79
Q

Dorsal Interossei Action

A
  1. Abducts the Fingers

2. Flexes Fingers at the McP while IP Joints are Extended

80
Q

Dorsal Interossei Nerve

81
Q

Lumbricals Origin

A

Tendons of Flexor Digitorum Profundus (2-5)

82
Q

Lumbricals Insertion

A

Tendons of Extensor Digitorum Communis (extensor expansion)

83
Q

Lumbricals Action

A
  1. Flexes the Knuckles (McP joints)

2. Extends IP joints

84
Q

Lumbricals Nerve

A

1 & 2: Median

3 & 4: Ulnar

85
Q

Abductor Pollicis Brevis Origin

A

Trapezium, Scaphoid Tuberosity and Transcerse Carpal Ligament

86
Q

Abductor Pollicis Brevis Insertion

A

Radial Side of Proximal Phalanx of Thumb

87
Q

Abductor Pollicis Brevis Action

A
  1. Abducts Thumb
  2. Participates to Flex Thumb
  3. If attached to Extensor Pollicis Longus, it might assist to Extend the Thumb
88
Q

Abductor Pollicis Brevis Nerve

89
Q

Flexor Pollicis Brevis Origin

A

Trapezium and Transverse Carpal Ligament

90
Q

Flexor Pollicis Brevis Insertion

A

Radial Side of Proximal Phalanx of Thumb

91
Q

Flexor Pollicis Brevis Action

A

Flexes the Thumb

92
Q

Flexor Pollicis Brevis Nerve

93
Q

Opponens Pollicis Origin

A

Trapezium and Transverse Carpal Ligament

94
Q

Opponens Pollicis Insertion

A

Whole Length of the Lateral Border of the 1st Metacarpal

95
Q

Opponens Pollicis Action

A

Opposes the Thumb to the Fingers

96
Q

Opponens Pollicis Nerve

97
Q

Adductor Pollicis Origin

A
  1. Transverse Head: 3rd Metacarpal

2. Oblique Head: Capitate, Bases of 2nd and 3rd Metacarpals, Trapezium and Trapezoid

98
Q

Adductor Pollicis Insertion

A

Ulnar Side of Proximal Phalanx of Thumb

99
Q

Adductor Pollicis Action

A

Adducts the Thumb

100
Q

Adductor Pollicis Nerve

101
Q

Palmaris Brevis Origin

A

Ulnar Side of Transverse Carpal Ligament and Palmar Fascia

102
Q

Palmaris Brevis Insertion

A

Skin on Ulnar Border of Palm

103
Q

Palmaris Brevis Action

A

Tenses the Skin on the Ulnar Side of the Palm

104
Q

Palmaris Brevis Nerve

Anatomy (12 decks)

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