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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

(104 cards)

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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
Extensor Carpi Radialis Brevis Origin
Lateral Epicondyle via the Common Extensor Tendon
26
Extensor Carpi Radialis Brevis Insertion
Base of 3rd Metacarpal (dorsum)
27
Extensor Carpi Radialis Brevis Action
1. Extends Wrist | 2. Radially Deviates Wrist
28
Extensor Carpi Radialis Brevis Nerve
Radial
29
Extensor Carpi Ulnaris Origin
Lateral Epicondyle via the Common Extensor Tendon
30
Extensor Carpi Ulnaris Insertion
Medial Side of Base of the 5th Metacarpal
31
Extensor Carpi Ulnaris Action
1. Extends Wrist | 2. Ulnarly Deviates Wrist
32
Extensor Carpi Ulnaris Nerve
Radial
33
Extensor Digitorum Origin
Lateral Epicondyle via the Common Extensor Tendon
34
Extensor Digitorum Insertion
Base of Middle Phalanx of the Four Fingers (central band) and Base of Distal Phalanx (lateral bands)
35
Extensor Digitorum Action
1. Extends 4 Medial Digits 2. Extends Wrist (if fingers are flexed) 3. Abducts the Digits (during extension)
36
Extensor Digitorum Nerve
Radial
37
Extensor Digiti Minimi Origin
1. Lateral Epicondyle via the Common Extensor Tendon | 2. Ulnar Aspect of Extensor Digitorum
38
Extensor Digiti Minimi Insertion
Base of Middle Phalanx of the 5th Finger (central band) and Base of Distal Phalanx (lateral bands)
39
Extensor Digiti Minimi Action
1. Extends the 5th Digit | 2. Abducts the 5th Digit
40
Extensor Digiti Minimi Nerve
Radial
41
Extensor Indicis Origin
1. Posterior Surface of Ulna | 2. Interosseus Membrane
42
Extensor Indicis Insertion
Base of Middle and Distal Phalanx of Index Finger
43
Extensor Indicis Action
1. Extends 2nd Digit 2. Adducts 2nd Digit 3. Assists to Extend the Wrist 4. Stabilizes McP Joint for Flexion of IP solely
44
Extensor Indicis Nerve
Radial
45
Supinator Origin
1. Lateral Epicondyle 2. Supinator Crest 3. Radial Collateral and Annular Ligament
46
Supinator Insertion
Proximal and Anterolateral Surface of Radius
47
Supinator Action
Supinates the Forearm
48
Supinator Nerve
Radial
49
Extensor Pollicis Longus Origin
1. Posterior Surface of Ulna | 2. Interosseus Membrane
50
Extensor Pollicis Longus Insertion
Distal Phalanx of Thumb
51
Extensor Pollicis Longus Action
1. Extends Distal Phalanx of Thumb 2. Extends Proximal Phalanx of Thumb 3. Assists to Extend the Wrist if Fingers are Flexed
52
Extensor Pollicis Longus Nerve
Radial
53
Extensor Pollicis Brevis Origin
1. Posterior Surface of Radius (below Abductor Pollicis Longus) 2. Interosseus Membrane
54
Extensor Pollicis Brevis Insertion
Base of Proximal Phalanx of Thumb
55
Extensor Pollicis Brevis Action
1. Extends Proximal Phalanx and 1st Metacarpal of the Thumb | 2. Radially Deviates Wrist
56
Extensor Pollicis Brevis Nerve
Radial
57
Abductor Pollicis Longus Origin
1. Posterior Surface of Ulna and Radius | 2. Interosseus Membrane
58
Abductor Pollicis Longus Insertion
Lateral Aspect of Base of 1st Metacarpal
59
Abductor Pollicis Longus Action
1. Abducts 1st Metacarpal 2. Assists to Extend and Rotate Thumb 3. Radially Deviates Wrist 4. Flexes Wrist
60
Abductor Pollicis Longus Nerve
Radial
61
Abductor Digiti Minimi Origin
Pisiform and Tendon of Flexor Carpi Ulnaris
62
Abductor Digiti Minimi Insertion
Medial Base of Proximal Phalanx of 5th Finger
63
Abductor Digiti Minimi Action
1. Abducts the 5th Digit | 2. Assists to Flex the 5th Digit
64
Abductor Digiti Minimi Nerve
Ulnar
65
Flexor Digiti Minimi Brevis Origin
Hamulus of Hamate and Transverse Carpal Ligament
66
Flexor Digiti Minimi Brevis Insertion
Ulnar Side of Base of Proximal Phalanx of 5th Finger
67
Flexor Digiti Minimi Brevis Action
Flexes 5th Digit
68
Flexor Digiti Minimi Brevis Nerve
Ulnar
69
Opponens Digiti Minimi Origin
Hamulus of Hamate and Flexor Retinaculum
70
Opponens Digiti Minimi Insertion
Ulnar Side of 5th Metacarpal
71
Opponens Digiti Minimi Action
1. Opposes 5th Digit with the Thumb | 2. Assists to "Cup the Palm"
72
Opponens Digiti Minimi Nerve
Ulnar
73
Palmar Interossei Origin
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
Palmar Interossei Insertion
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
Palmar Interossei Action
1. Adducts the Fingers | 2. Flexes Fingers at the McP while the IP Joints are Extended
76
Palmar Interossei Nerve
Ulnar
77
Dorsal Interossei Origin
By Two Heads from Adjacent Sides of Metacarpal Bones
78
Dorsal Interossei Insertion
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
Dorsal Interossei Action
1. Abducts the Fingers | 2. Flexes Fingers at the McP while IP Joints are Extended
80
Dorsal Interossei Nerve
Ulnar
81
Lumbricals Origin
Tendons of Flexor Digitorum Profundus (2-5)
82
Lumbricals Insertion
Tendons of Extensor Digitorum Communis (extensor expansion)
83
Lumbricals Action
1. Flexes the Knuckles (McP joints) | 2. Extends IP joints
84
Lumbricals Nerve
1 & 2: Median | 3 & 4: Ulnar
85
Abductor Pollicis Brevis Origin
Trapezium, Scaphoid Tuberosity and Transcerse Carpal Ligament
86
Abductor Pollicis Brevis Insertion
Radial Side of Proximal Phalanx of Thumb
87
Abductor Pollicis Brevis Action
1. Abducts Thumb 2. Participates to Flex Thumb 3. If attached to Extensor Pollicis Longus, it might assist to Extend the Thumb
88
Abductor Pollicis Brevis Nerve
Median
89
Flexor Pollicis Brevis Origin
Trapezium and Transverse Carpal Ligament
90
Flexor Pollicis Brevis Insertion
Radial Side of Proximal Phalanx of Thumb
91
Flexor Pollicis Brevis Action
Flexes the Thumb
92
Flexor Pollicis Brevis Nerve
Median
93
Opponens Pollicis Origin
Trapezium and Transverse Carpal Ligament
94
Opponens Pollicis Insertion
Whole Length of the Lateral Border of the 1st Metacarpal
95
Opponens Pollicis Action
Opposes the Thumb to the Fingers
96
Opponens Pollicis Nerve
Median
97
Adductor Pollicis Origin
1. Transverse Head: 3rd Metacarpal | 2. Oblique Head: Capitate, Bases of 2nd and 3rd Metacarpals, Trapezium and Trapezoid
98
Adductor Pollicis Insertion
Ulnar Side of Proximal Phalanx of Thumb
99
Adductor Pollicis Action
Adducts the Thumb
100
Adductor Pollicis Nerve
Ulnar
101
Palmaris Brevis Origin
Ulnar Side of Transverse Carpal Ligament and Palmar Fascia
102
Palmaris Brevis Insertion
Skin on Ulnar Border of Palm
103
Palmaris Brevis Action
Tenses the Skin on the Ulnar Side of the Palm
104
Palmaris Brevis Nerve
Ulnar

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