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Anatomy > Anatomy Test 1 Muscles > Flashcards

Anatomy Test 1 Muscles Flashcards

1
Q

Origin of Pectorals Major

A

Clavicle, sternum, 1-6 costal cartilages

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2
Q

Insertion of Pectorals Major

A

Lateral lip of the bicipital groove of the humerus

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3
Q

Action of Pectorals Major

A

Adducts and medially rotates humerus

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4
Q

Innervation of Pectorals Major

A

Medial Pectoral nerve(C8-T1), lateral pectoral nerve (C5-C7),

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5
Q

Blood supply of Pectorals Major

A

Pectoral branch of Thoracoacromial Trunk

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6
Q

Origin of Pectoralis Minor

A

3-5th ribs near costal cartilage

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7
Q

Insertion of Pectoralis Minor

A

Coracoid process of scapula

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8
Q

Action of Pectoralis Minor

A

Stabilizes and protracts scapula

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9
Q

Innervation of Pectoralis Minor

A

Medial Pectoral nerve(C8-T1)

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10
Q

Blood supply of Pectoralis Minor

A

Pectoral branch of Thoracoacromial Trunk

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11
Q

Origin of Subclavius

A

First costal cartilage

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12
Q

Insertion of Subclavius

A

Inferior surface of clavicle

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13
Q

Action of Subclavius

A

Depresses and steadies clavicle

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14
Q

Innervation of Subclavius

A

Nerve to subclavius of superior trunk of Brachial Plexus (C5-C6)

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15
Q

Blood supply of Subclavius

A

Clavicular branch of Thoracoacromial Trunk

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16
Q

Origin of Serrates Anterior

A

1-8th Ribs

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17
Q

Insertion of Serrates Anterior

A

Medial Border, inferior angle of Scapula

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18
Q

Action of Serrates Anterior

A

Protracts and Rotates Scapula

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19
Q

Innervation of Serrates Anterior

A

Long Thoracic nerve(C5-C7)

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20
Q

Blood supply of Serrates Anterior

A

Lateral Thoracic Artery and Thoracodorsal Artery

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21
Q

Deltopectoral Triangle boundaries:

A

Pectoralis major muscle, Deltoid Muscle, Clavicle

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22
Q

Deltopectoral Triangle contains

A

Cephalic Vein, Deltoid Branch of Thoracoacromial Trunk

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23
Q

Origin of Trapezius

A

External occipital protuberance, nuchal ligament, Medial superior nuchal line, Spinous processes of C7-T12

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24
Q

Insertion of Trapezius

A

Posterior border of lateral third of clavicle, acromion process, spine of scapula

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25
Q

Action of Trapezius

A

Rotation, retraction, elevation and depression of scapula

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26
Q

Innervation of Trapezius

A

Spinal accessory nerve (XI)

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27
Q

Blood supply of Trapezius

A

Transverse Cervical Artery (Descending)

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28
Q

Origin of Levator Scapulae

A

Posterior tubercle of transverse processes of (C1-C4)

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29
Q

Insertion of Levator Scapulae

A

Superior angle of scapula

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30
Q

Action of Levator Scapulae

A

Elevates scapula

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31
Q

Innervation of Levator Scapulae

A

Cervical Nerve (C3-C4), Dorsal Scapular Nerve (C5)

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32
Q

Blood supply of Levator Scapulae

A

Dorsal Scapular Artery

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33
Q

Origin of Rhomboid Minor

A

Nuchal ligaments and spinous processes (C7-T1)

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34
Q

Insertion of Rhomboid Minor

A

Medial border of scapula and (Superior to insertion of Rhomboid Major)

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35
Q

Action of Rhomboid Minor

A

Retracts and Rotates Scapula and Fixes scapula to thoracic wall

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36
Q

Innervation of Rhomboid Minor

A

Dorsal Scapular Nerve (C4-C5)

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37
Q

Blood supply of Rhomboid Minor

A

Deep branch of Transverse Scapular Artery

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38
Q

Origin of Rhomboid Major

A

Spinous processes of T2-T5

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39
Q

Insertion of Rhomboid Major

A

Medial border of Scapula (Inferior to insertion of Rhomboid Minor)

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40
Q

Action of Rhomboid Major

A

Retracts and Rotates Scapula, Fixes Scapula to Thoracic Wall

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41
Q

Innervation of Rhomboid Major

A

Dorsal Scapular Nerve (C4-C5)

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42
Q

Origin of Latissimus Dorsi

A

Spinous process of T7-L5, Thoracolumbar fascia, Iliac Crest, inferior angle of Scapula, inferior 3-4 ribs

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43
Q

Insertion of Latissimus Dorsi

A

Medial lip of Bicipital groove of Humerus

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44
Q

Action of Latissimus Dorsi

A

Adducts, extends, and internally rotates Humerus

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45
Q

Innervation of Latissimus Dorsi

A

Thoracodosal nerve (C6-C8)

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46
Q

Blood supply of Latissimus Dorsi

A

Thoracodorsal Branch of Subscapular Artery

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47
Q

Origin of Deltoids

A

Anterior border and upper surface of Lateral third of Clavicle, Acromion, Spine of Scapula

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48
Q

Insertion of Deltoids

A

Deltoid Tuberosity of Humerus

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49
Q

Action of Deltoids

A

Shoulder Abduction, flexion, and extension

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50
Q

Innervation of Deltoids

A

Axillary Nerve (C5-C6)

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51
Q

Blood supply of Deltoids

A

Deltoid branch of Thoracoacromial Trunk, Posterior Circumflex humeral Artery

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52
Q

Origin of Supraspinatus

A

Supraspinous fossa of Scapula

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53
Q

Insertion of Supraspinatus

A

Greater tubercle of Humerus

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54
Q

Action of Supraspinatus

A

Abduction of arm (15-20 degrees) and stabilizes humerus

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55
Q

Innervation of Supraspinatus

A

Suprascapular Nerve (C4-C5)

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56
Q

Blood suppy of Supraspinatus

A

Suprascapular Artery

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57
Q

Origin of Infraspinatus

A

Infraspinous fossa of Scapula

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58
Q

Insertion of Infraspinatus

A

Greater tubercle of Humerus

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59
Q

Action of Infraspinatus

A

Lateral rotation of Humerus

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60
Q

Innervation of Infraspinatus

A

Suprascapular Nerve (C4-C5)

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61
Q

Blood supply of Infraspinatus

A

Suprascapular and Circumflex Scapular Arteries

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62
Q

Origin of Teres Major

A

Posterior aspect of the inferior angle of Scapula

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63
Q

Insertion of Teres Major

A

Medial lip of intertubercular groove of Humerus

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64
Q

Action of Teres Major

A

Medial rotation of Humerus

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65
Q

Innervation of Teres Major

A

Lower Subscapular Nerve (C5-C6)

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66
Q

Blood supply of Teres Major

A

Subscapular and Circumflex Scapular Arteries

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67
Q

Origin of Teres Minor

A

Lateral border of Scapula

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68
Q

Insertion of Teres Minor

A

Greater tubercle of Humerus

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69
Q

Action of Teres Minor

A

Laterally rotates Humerus

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70
Q

Innervation of Teres Minor

A

Axillary Nerve (C5-C6)

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71
Q

Blood supply of Teres Minor

A

Posterior circumflex humeral and circumflex scapular arteries

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72
Q

Origin of Subscapularis

A

Subscapular Fossa

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73
Q

Insertion of Subscapularis

A

Lesser tubercle of Humerus

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74
Q

Action of Subscapularis

A

Medially Rotates Humerus

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75
Q

Innervation of Subscapularis

A

Upper subscapular Nerve, Lower Subscapular Nerve (C5-C6)

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76
Q

Blood supply of Subscapularis

A

Subscapular Artery

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77
Q

Quadrangular Space boundaries:

A

Teres Minor
Teres Major
Long Head of Triceps
Lateral Head of Triceps

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78
Q

Quadrangular Space contains:

A

Axillary Nerve

Posterior Circumflex Humeral Artery

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79
Q

Triangular Space boundaries:

A

Teres Minor
Teres Major
Long Head of Triceps

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80
Q

Triangular Space contains:

A

Circumflex scapular artery deep to space

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81
Q

Triangular Interval boundaries:

A

Teres Major
Long Head of Triceps
Lateral Head of Triceps

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82
Q

Triangular Interval contains:

A

Radial Nerve

Deep Brachial Artery

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83
Q

Triangle of Auscultation boundaries:

A

Trapezius
Latissiumus Dorsi
Medial Border of Scapula

84
Q

Lumbar Triangle of Petit boundaries:

A 
Iliac Crest
External Oblique 
Latissiumus Dorsi
Site of Hernia 
(Cecum and Internal Oblique)
85
Q

Origin of Biceps Brachii – Short Head

A

Coracoid process of Scapula

86
Q

Insertion of Biceps Brachii – Short Head

A

Radial tuberosity

87
Q

Action of Biceps Brachii – Short Head

A

Flexes elbow and Supinates forearm

88
Q

Innervation of Biceps Brachii – Short Head

A

Musculocutaneous Nerve (C5-C7)

89
Q

Blood supply of Biceps Brachii – Short Head

A

Brachial Artery

90
Q

Origin of Biceps Brachii – Long Head

A

Supraglenoid Tubercle

91
Q

Insertion of Biceps Brachii – Long Head

A

Radial tuberosity

92
Q

Action of Biceps Brachii – Long Head

A

Flexes elbow and Supinates forearm

93
Q

Innervation of Biceps Brachii – Long Head

A

Musculocutaneous Nerve (C5-C7)

94
Q

Blood supply of Biceps Brachii – Long Head

A

Brachial Artery

95
Q

Origin of Coracobrachialis

A

Coracoid process of Scapula

96
Q

Insertion of Coracobrachialis

A

Medial Humerus

97
Q

Action of Coracobrachialis

A

Adducts Humerus, Flexes arm at Glenohumeral joint

98
Q

Innervation of Coracobrachialis

A

Musculocutaneous Nerve (C5-C7)

99
Q

Blood supply of Coracobrachialis

A

Brachial Artery

100
Q

Origin of Brachialis

A

Anterior surface of Humerus (distal half)

101
Q

Insertion of Brachialis

A

Coronoid process and tuberosity of ulna

102
Q

Action of Brachialis

A

Flexes elbow

103
Q

Innervation of Brachialis

A

Musculocutaneous Nerve (C5-C7)

104
Q

Blood supply of Brachialis

A

Radial Recurrent Artery

105
Q

Origin of Triceps Brachii

A

Long head – infraglenoid tubercle of scapula
Lateral head – above radial sulcus
Medial head – below radial sulcus

106
Q

Insertion of Triceps Brachii

A

Olecranon process of ulna

107
Q

Action of Triceps Brachii

A

Extends forearm, long head extends shoulder

108
Q

Innervation of Triceps Brachii

A

Radial Nerve (C5-T1)

109
Q

Blood supply of Triceps Brachii

A

Deep Brachial Artery

110
Q

Origin of Ancones

A

Lateral epicondyle of Humerus

111
Q

Insertion of Ancones

A

Lateral surface of olecranon process, Superior ulna

112
Q

Action of Ancones

A

Forearm extension, Stabilization during pronation/supination

113
Q

Innervation of Ancones

A

Radial Nerve (C5-T1)

114
Q

Blood supply of Ancones

A

Deep Brachial Artery, Recurrent Interosseous Artery

115
Q

Cubital Fossa bound by

A

Laterally by brachioradialis muscle

Medially by pronator teres muscle

116
Q

Cubital Fossa base:

A

Between the epicondyles

117
Q

Cubital Fossa floor:

A

Supinator muscle laterally

Brachialis muscle medially

118
Q

Cubital Fossa roof:

A

Skin and fascia

Bicipital aponeurosis

119
Q

Cubital Fossa contains:

A 
Median Nerve
Brachial Artery – radial and ulnar arteries
Tendon of Biceps Brachii
Radial Nerve and Deep Branches
Lateral Cutaneous nerve of forearm
Median Cubital vein
120
Q

Origin of Extensor Carpi Radialis Longus

A

Lateral Supracondylar Ridge

121
Q

Insertion of Extensor Carpi Radialis Longus

A

2nd metacarpal

122
Q

Action of Extensor Carpi Radialis Longus

A

Extension of wrist

Abducts hand at the wrist

123
Q

Innervation of Extensor Carpi Radialis Longus

A

Radial Nerve (C5-T1)

124
Q

Blood supply of Extensor Carpi Radialis Longus

A

Radial artery

125
Q

Origin of Extensor Carpi Radialis Brevis

A

Anterior lateral epicondyle of Humerus

126
Q

Insertion of Extensor Carpi Radialis Brevis

A

Posterior base of 3rd metacarpal

127
Q

Action of Extensor Carpi Radialis Brevis

A

Extensor and abductor of the hand at the wrist

128
Q

Innervation of Extensor Carpi Radialis Brevis

A

Deep branch of Radial Nerve (C5-T1)

129
Q

Blood supply of Extensor Carpi Radialis Brevis

A

Radial Artery

130
Q

Origin of Pronator Teres

A

Medial epicondyle of Humerus

131
Q

Insertion of Pronator Teres

A

Middle of the lateral surface of the body of the Radius

132
Q

Action of Pronator Teres

A

Pronation of forearm

Flexes elbow

133
Q

Innervation of Pronator Teres

A

Median Nerve (C6-T1)

134
Q

Blood supply of Pronator Teres

A

Radial and Ulnar Arteries

135
Q

Origin of Flexor Carpi Radialis

A

Medial epicondyle of Humerus

136
Q

Insertion of Flexor Carpi Radialis

A

Bases of second and third metacarpals

137
Q

Action of Flexor Carpi Radialis

A

Flexion and abduction of wrist

138
Q

Innervation of Flexor Carpi Radialis

A

Median Nerve (C6-T1)

139
Q

Blood supply of Flexor Carpi Radialis

A

Ulnar Arteries

140
Q

Origin of Palmer’s Longus

A

Medial epicondyle of Humerus

141
Q

Insertion of Palmer’s Longus

A

Palmar aponeurosis

142
Q

Action of Palmer’s Longus

A

Flexion of the wrist

143
Q

Innervation of Palmer’s Longus

A

Median Nerve (C6-T1)

144
Q

Blood supply of Palmer’s Longus

A

Ulnar Artery

145
Q

Origin of Flexor Carpi Ulnaris

A

Medial epicondyle of Humerus

146
Q

Insertion of Flexor Carpi Ulnaris

A

Pisiform

147
Q

Action of Flexor Carpi Ulnaris

A

Flexion of wrist

Adduction of wrist

148
Q

Innervation of Flexor Carpi Ulnaris

A

Muscular Branches of Ulnar Nerve

149
Q

Blood supply of Flexor Carpi Ulnaris

A

Ulnar Artery

150
Q

Origin of Flexor Digitorum Superficialis

A

Medial epicondyle of Humerus

151
Q

Insertion of Flexor Digitorum Superficialis

A

Anterior margins on the bases of middle phalanges of the four fingers

152
Q

Action of Flexor Digitorum Superficialis

A

Flexes fingers

153
Q

Innervation of Flexor Digitorum Superficialis

A

Median Nerve (C6-T1)

154
Q

Blood supply of Flexor Digitorum Superficialis

A

Ulnar Artery

155
Q

Origin of Supinator

A

Lateral epicondyle of Humerus

Supinator Crest of Ulna

156
Q

Insertion of Supinator

A

Lateral proximal radial shaft

157
Q

Action of Supinator

A

Supinates forearm

158
Q

Innervation of Supinator

A

Deep Radial Nerve

159
Q

Blood supply of Supinator

A

Radial Recurrent Artery

160
Q

Origin of Flexor Policus Longus

A

The middle ½ of volar surface of Radius

Adjacent interosseous membrane

161
Q

Insertion of Flexor Policus Longus

A

Base of distal phalanx of the thumb

162
Q

Action of Flexor Policus Longus

A

Flexion of the thumb

163
Q

Innervation of Flexor Policus Longus

A

Anterior interosseous nerve – branch of Median Nerve (C6-T1)

164
Q

Blood supply of Flexor Policus Longus

A

Anterior Interosseous artery

165
Q

Origin of Pronator Quadratus

A

Medial, anterior surface of ulna

166
Q

Insertion of Pronator Quadratus

A

Lateral, anterior surface of Radius

167
Q

Action of Pronator Quadratus

A

Pronates forearm

168
Q

Innervation of Pronator Quadratus

A

Anterior interosseous nerve – branch of Median Nerve (C6-T1)

169
Q

Blood supply of Pronator Quadratus

A

Anterior Interosseous artery

170
Q

Origin of Flexor Digitorum Profundus

A

Upper ¾ of the voler and medial surfaces of Ulna

Interosseous membrane

171
Q

Insertion of Flexor Digitorum Profundus

A

Base of distal phalanges of fingers

172
Q

Action of Flexor Digitorum Profundus

A

Flexion of the hand

173
Q

Innervation of Flexor Digitorum Profundus

A

Anterior interosseous nerve – branch of Median Nerve (C6-T1)

174
Q

Blood supply of Flexor Digitorum Profundus

A

Anterior Interosseous artery

175
Q

Origin of Extensor Carpi Ulnaris

A

Common Extensor Tendon

176
Q

Insertion of Extensor Carpi Ulnaris

A

5th Metacarpal

177
Q

Action of Extensor Carpi Ulnaris

A

Extends and Adducts Wrist

178
Q

Innervation of Extensor Carpi Ulnaris

A

Deep Branch of Radial Nerve (C5-T1)

179
Q

Blood supply of Extensor Carpi Ulnaris

A

Ulnar Artery

180
Q

Origin of Extensor Digitorum

A

Lateral epicondyle of Humerus

181
Q

Insertion of Extensor Digitorum

A

Extensor expansion of middle/distal phalanges of 2nd-5th fingers

182
Q

Action of Extensor Digitorum

A

Extension of hand, wrist, fingers

183
Q

Innervation of Extensor Digitorum

A

Radial Nerve (C5-T1)

184
Q

Blood supply of Extensor Digitorum

A

Posterior Interosseous artery

185
Q

Origin of Extensor Digiti Minimi

A

Anterior portion of the lateral epicondyle of the Humerus

186
Q

Insertion of Extensor Digiti Minimi

A

Base of proximal phalanx of finger 5

187
Q

Action of Extensor Digiti Minimi

A

Extends wrist and the little finger

188
Q

Innervation of Extensor Digiti Minimi

A

Posterior Interosseous Nerve (C7-8)

189
Q

Blood supply of Extensor Digiti Minimi

A

Posterior Interosseous artery

190
Q

Origin of Abductor Pollicis Longus

A

Ulna, Radius, Interosseous Membrane

191
Q

Insertion of Abductor Pollicis Longus

A

First Metacarpal

192
Q

Action of Abductor Pollicis Longus

A

Abduction, extension of the thumb

193
Q

Innervation of Abductor Pollicis Longus

A

Posterior Interosseous Nerve

194
Q

Blood supply of Abductor Pollicis Longus

A

Posterior Interosseous artery

195
Q

Origin of Extensor Pollicus Brevis

A

Radius and Interosseous Membrane

196
Q

Insertion of Extensor Pollicus Brevis

A

Thumb, proximal phalanx

197
Q

Action of Extensor Pollicus Brevis

A

Extension of thumb

198
Q

Innervation of Extensor Pollicus Brevis

A

Posterior interosseous nerve – branch of Median Nerve (C6-T1)

199
Q

Blood supply of Extensor Pollicus Brevis

A

Posterior Interosseous artery

200
Q

Origin of Extensor Indicis

A

Ulna, interosseous membrane

201
Q

Insertion of Extensor Indicis

A

Index finger

202
Q

Action of Extensor Indicis

A

Extends index finger, wrist

203
Q

Innervation of Extensor Indicis

A

Posterior interosseous nerve – branch of Median Nerve (C6-T1)

204
Q

Blood supply of Extensor Indicis

A

Posterior Interosseous artery

205
Q

Blood supply of Rhomboid Major

A

Dorsal Scapular Artery

Anatomy (5 decks)

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