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Regional Anatomy > Upper Extremity > Flashcards

Upper Extremity Flashcards

1
Q

Origin of trapezius

A

Medial 1/3 superior nuchal line, EOP, nuchal ligament, CP C7-T12

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2
Q

Insertion of trapezius

A

Spine of scapula, acromion process, lateral 1/3 of clavicle

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3
Q

Innervation of trapezius

A

Spinal accessory nerve

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4
Q

Actions of trapezius

A

Elevation, retraction, depression, superior rotation of scapula

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5
Q

Origin of lats

A

SP of T7-L5, thoracolumbar fascia, iliac crest

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6
Q

Insertion of lats

A

Intertubercular groove of the humerus (medial portion)

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7
Q

Innervation of lats

A

Thoracodorsal nerve

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8
Q

Actions of lats

A

Extension, medial rotation, adduction of humerus

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9
Q

Origin of levator scapula

A

TP C1-4

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10
Q

Insertion of levator scapula

A

Superior border of medial border of scapula

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11
Q

Innervation of levator scapula

A

Dorsal scapular

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12
Q

Actions of levator scapula

A

Elevate scapula

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13
Q

Origin of rhomboid minor

A

SP C7-T1

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14
Q

Insertion of rhomboid minor

A

Medial border of scapula (level of the spine)

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15
Q

Innervation of rhomboid minor

A

Dorsal scapular nerve

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16
Q

Actions of rhomboid minor

A

Retract scapula, rotate glenoid cavity inferior

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17
Q

Origin of rhomboid major

A

SP T2-T5

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18
Q

Insertion of rhomboid major

A

Medial border of scapula

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19
Q

Innervation of rhomboid major

A

Axillary nerve

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20
Q

Actions of rhomboid major

A

retracts and downwardly rotates pec girdle

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21
Q

Origin of deltoid

A

Spine of scapula, acromion process, lateral 1/3 of the clavicle

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22
Q

Insertion of deltoid

A

Deltoid tuberosity of the humerus

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23
Q

Innervation of deltoid

A

Axillary nerve

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24
Q

Actions of deltoid

A

Extension, abduction, flexion of humerus

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25
Q

Origin of supraspinatus

A

Supraspinous fossa of scapula

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26
Q

Insertion of supraspinatus

A

Superior facet of greater tubercle of humerus

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27
Q

Innervation of supraspinatus

A

Suprascapular nerve

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28
Q

Action of supraspinatus

A

Abduction of humerus

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29
Q

Origin of infraspinatus

A

Infraspinous fossa of scapula

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30
Q

Insertion of infraspinatus

A

Middle facet on greater tubercle of humerus

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31
Q

Innervation of infraspinatus

A

Suprascapular nerve

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32
Q

Action of infraspinatus

A

Lateral rotation of humerus

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33
Q

Origin of teres minor

A

Middle portion of lateral border of scapula

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34
Q

Insertion of teres minor

A

Inferior facet of greater tubercle of humerus

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35
Q

Innervation of teres minor

A

Axillary nerve

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36
Q

Action of teres minor

A

Lateral rotation of humerus

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37
Q

Origin of subscapularis

A

Subscapular fossa

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38
Q

Insertion of subscapularis

A

Lesser tubercle of humerus

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39
Q

Innervation of subscapularis

A

Upper and lower subscapular nerve

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40
Q

Action of subscapularis

A

Medial rotation of humerus (assists with adduction)

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41
Q

Origin of teres major

A

Dorsal surface of inferior angle of scapula

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42
Q

Insertion of teres major

A

Intertubercular groove of humerus (medial portion)

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43
Q

Innervation of teres major

A

Lower subscapular nerve

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44
Q

Action of teres major

A

Adducts and medially rotates arm

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45
Q

Origin of serratus anterior

A

External lateral surface of ribs 1-8

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46
Q

Insertion of serratus anterior

A

Anterior portion of medial border of scapula

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47
Q

Innervation of serratus anterior

A

Long thoracic nerve

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48
Q

Action of serratus anterior

A

Protraction of scapula, stabilizes scapula against thoracic wall

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49
Q

Origin of subclavius

A

Costal junction rib 1

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50
Q

Insertion of subclavius

A

Middle and distal portion of clavicle

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51
Q

Innervation of subclavius

A

Nerve to subclavius

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52
Q

Action of subclavius

A

Stabilize and depress clavicle

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53
Q

Origin of pec major

A

Clavicular head: Anterior surface medial 1/2 of clavicle,

Sternocostal head: Anteriolateral sternum and upper 6 ribs

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54
Q

Insertion of pec major

A

Intertubercular groove of humerus (lateral portion)

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55
Q

Innervation of pec major

A

Lateral pectoral nerve to clavicular head, medial pectoral head to sternocostal head

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56
Q

Action of pec major

A

Adduction and medial rotation of humerus, flexion of humerus

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57
Q

Origin of pec minor

A

Ribs 3, 4, 5 near costocartilage junction

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58
Q

Insertion of pec minor

A

Coracoid process of scapula

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59
Q

Innervation of pec minor

A

Medial pectoral nerve

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60
Q

Action of pec minor

A

Protraction and depression of scapula

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61
Q

Origin of coracobrachialis

A

Coracoid process

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62
Q

Insertion of coracobrachialis

A

Medial surface of humerus

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63
Q

Innervation of coracobrachialis

A

Musculocutaneous nerve

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64
Q

Action of coracobrachialis

A

Flexion and adduction of humerus

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65
Q

Origin of biceps brachii

A

Short head: coracoid process

Long head: supraglenoid tubercle of scapula

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66
Q

Insertion of biceps brachii

A

Radial tuberosity and bicipital aponeurosis

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67
Q

Innervation of biceps brachii

A

Musculocutaneous nerve

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68
Q

Action of biceps brachii

A

Flexes and supinates forearm

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69
Q

Origin of brachialis

A

Distal 1/2 anterior surface of the humerus

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70
Q

Insertion of brachialis

A

Coronoid process and tuberosity of ulna

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71
Q

Innervation of brachialis

A

Musculocutaneous nerve

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72
Q

Action of brachialis

A

Flexion of forearm

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73
Q

Origin of triceps brachii

A

Long head: Infraglenoid tubercle
Lateral head: Posterior humerus
Medial head: Posterior humerus

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74
Q

Insertion of triceps brachii

A

Olecranon process of ulna

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75
Q

Innervation of triceps brachii

A

Radial nerve

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76
Q

Action of triceps brachii

A

Extension of forearm

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77
Q

Origin of anconeus

A

Lateral epicondyle of humerus

78
Q

Insertion of anconeus

A

Olecranon of ulna and superior portion of ulna

79
Q

Innervation of anconeus

A

Radial nerve

80
Q

Action of anconeus

A

Extension of forearm

81
Q

Origin of brachioradialis

A

Lateral portion of distal humerus

82
Q

Insertion of brachioradialis

A

Styloid process and distal 1/3 of radius

83
Q

Innervation of brachioradialis

A

Radial nerve

84
Q

Action of brachioradialis

A

Flexion of forearm

85
Q

Origin of pronator teres

A

Medial epicondyle of humerus and coronoid process of ulna

86
Q

Insertion of pronator teres

A

Lateral surface of radius

87
Q

Innervation of pronator teres

A

Median nerve

88
Q

Action of pronator teres

A

Pronation and flexion of forearm

89
Q

Origin of flexor carpi radialis

A

Medial epicondyle of humerus

90
Q

Insertion of flexor carpi radialis

A

Base of second metacarpal

91
Q

Innervation of flexor carpi radialis

A

Median nerve

92
Q

Action of flexor carpi radialis

A

Flexes wrist and abducts wrist (radial deviation)

93
Q

Origin of palmaris longus

A

Medial epicondyle of humerus

94
Q

Insertion of palmaris longus

A

Flexor retinaculum and palmar aponeurosis

95
Q

Innervation of palmaris longus

A

Median nerve

96
Q

Action of palmaris longus

A

Flexes wrist

97
Q

Origin of flexor carpi ulnaris

A

Humeral head: Medial epicondyle

Ulnar head: Olecranon, posterior ulna

98
Q

Insertion of flexor carpi ulnaris

A

Pisiform, hook of hamate, fifth metacarpal

99
Q

Innervation of flexor carpi ulnaris

A

Ulnar nerve

100
Q

Action of flexor carpi ulnaris

A

Flexion and adduction of wrist (ulnar deviation)

101
Q

Origin of flexor digitorum superficialis

A

Humeroulnar head: Medial epicondyle of humerus, coronoid process of ulna
Radial head: Anteriosuperior radius

102
Q

Insertion of flexor digitorum superficialis

A

Middle phalanges of digits 1-4

103
Q

Innervation of flexor digitorum superficialis

A

Median nerve

104
Q

Action of flexor digitorum superficialis

A

Flexes phalanges at proximal interphalangeal joints, flexes metacarpophalangeal joints (assists with wrist flexion)

105
Q

Origin of flexor digitorum profundus

A

Proximal 3/4 anterior ulna and interosseous membrane

106
Q

Insertion of flexor digitorum profundus

A

Base of distal phalanges 1-4

107
Q

Innervation of flexor digitorum profundus

A

Medial portion: Ulnar nerve

Lateral portion: Median nerve

108
Q

Action of flexor digitorum profundus

A

Flexes distal phalanges at interphalangeal joints 1-4, flexes metacarpophalangeal joints

109
Q

Origin of flexor pollicis longus

A

Anterior surface of radius and interosseous membrane

110
Q

Insertion of flexor pollicis longus

A

Base of distal phalanx of pollex

111
Q

Innervation of flexor pollicis longus

A

Median nerve

112
Q

Action of flexor pollicis longus

A

Flexes phalanges of pollex

113
Q

Origin of pronator quadratus

A

Distal 1/4 of anterior surface of ulna

114
Q

Insertion of pronator quadratus

A

Distal 1/4 of anterior surface of radius

115
Q

Innervation of pronator quadratus

A

Median nerve

116
Q

Action of pronator quadratus

A

Pronates forearm

117
Q

Origin of extensor carpi radialus longus

A

Lateral supracondylar ridge of humerus

118
Q

Insertion of extensor carpi radialus longus

A

Base of second metacarpal

119
Q

Innervation of extensor carpi radialus longus

A

Deep radial nerve

120
Q

Action of extensor carpi radialus longus

A

Extension of wrist, abduction of wrist (radial deviation)

121
Q

Origin of extensor carpi radialis brevis

A

Lateral epicondyle of humerus

122
Q

Insertion of extensor carpi radialis brevis

A

Base of third metacarpal

123
Q

Innervation of extensor carpi radialis brevis

A

Deep radial nerve

124
Q

Action of extensor carpi radialis brevis

A

Extension of wrist, abduction of wrist (radial deviation)

125
Q

Origin of extensor digitorum

A

Lateral epicondyle of humerus

126
Q

Insertion of extensor digitorum

A

Extensor expansions of digits 2-5

127
Q

Innervation of extensor digitorum

A

Posterior interosseous nerve branch of Deep Radial nerve

128
Q

Action of extensor digitorum

A

Extension of 4 digits at interphalangeal joints, metacarpophalangeal joints, extension of wrist

129
Q

Origin of extensor digiti minimi

A

Lateral epicondyle of humerus

130
Q

Insertion of extensor digiti minimi

A

Base of middle phalanx fifth digit

131
Q

Innervation of extensor digiti minimi

A

Posterior interosseous nerve branch of Deep Radial nerve

132
Q

Action of extensor digiti minimi

A

Extends fifth digit at interphalangeal joints and metacarpophalangeal joints

133
Q

Origin of extensor carpi ulnaris

A

Lateral epicondyle of humerus, posterior border of ulna

134
Q

Insertion of extensor carpi ulnaris

A

Base of fifth metacarpal

135
Q

Innervation of extensor carpi ulnaris

A

Posterior interosseous nerve branch of Deep Radial nerve

136
Q

Action of extensor carpi ulnaris

A

Extension and adduction of wrist

137
Q

Origin of supinator

A

Lateral epicondyle of humerus, crest of ulna

138
Q

Insertion of supinator

A

Proximal 1/3 of radius

139
Q

Innervation of supinator

A

Deep Radial nerve

140
Q

Action of supinator

A

Supination of forearm

141
Q

Origin of abductor pollicis longus

A

Posterior surfaces of radius and ulna, interosseous membrane

142
Q

Insertion of abductor pollicis longus

A

Base of first metacarpal

143
Q

Innervation of abductor pollicis longus

A

Posterior interosseous nerve branch of Deep Radial nerve

144
Q

Action of abductor pollicis longus

A

Abducts thumb at carpometacarpal joint

145
Q

Origin of extensor pollicis brevis

A

Posterior surface of radius and interosseous membrane

146
Q

Insertion of extensor pollicis brevis

A

Base of proximal phalanx of the pollex

147
Q

Innervation of extensor pollicis brevis

A

Posterior interosseous nerve branch of Deep Radial nerve

148
Q

Action of extensor pollicis brevis

A

Extends proximal phalanx at carpometacarpal joint

149
Q

Origin of extensor pollicis longus

A

Posterior surface middle 1/3 ulna and interosseous membrane

150
Q

Insertion of extensor pollicis longus

A

Base of distal phalanx of pollex

151
Q

Innervation of extensor pollicis longus

A

Posterior interosseous nerve branch of deep radial nerve

152
Q

Action of extensor pollicis longus

A

Extends distal phalanx at metacarpophalangeal ad interphalangeal joints

153
Q

Origin of extensor indicis

A

Posterior surface of ulna and interosseous membrane

154
Q

Insertion of extensor indicis

A

Extensor expansion of second digit

155
Q

Innervation of extensor indicis

A

Posterior interosseous nerve branch of deep radial nerve

156
Q

Action of extensor indicis

A

Extends second digit and assists with extension of wrist

157
Q

Origin of abductor pollicis brevis

A

Flexor retinaculum, tubercles of scaphoid and trapezius

158
Q

Insertion of abductor pollicis brevis

A

Proximal phalanx of thumb

159
Q

Innervation of abductor pollicis brevis

A

Recurrent branch of median nerve

160
Q

Action of abductor pollicis brevis

A

Abduction of thumb

161
Q

Origin of flexor pollicis brevis

A

Flexor retinaculum, tubercles of scaphoid and trapezium

162
Q

Insertion of flexor pollicis brevis

A

Proximal phalanx of the thumb

163
Q

Innervation of flexor pollicis brevis

A

Recurrent branch of median nerve

164
Q

Action of flexor pollicis brevis

A

Flexes thumb

165
Q

Origin of oponens pollicis

A

Flexor retinaculum, tubercles of scaphoid and trapezium

166
Q

Insertion of oponens pollicis

A

Lateral side of first metacarpal

167
Q

Innervation of oponens pollicis

A

Recurrent branch of median nerve

168
Q

Action of oponens pollicis

A

Draws first metacarpal medially to oppose thumb

169
Q

Origin of adductor pollicis

A

Oblique head: bases of 2nd and 3rd metacarpals

Transverse head: 3rd metacarpal

170
Q

Insertion of adductor pollicis

A

Medial side of proximal phalanx of thumb

171
Q

Innervation of adductor pollicis

A

Deep branch of ulnar nerve

172
Q

Action of adductor pollicis

A

Abduct thumb towards midline of hand

173
Q

Origin of abductor digiti minimi

174
Q

Insertion of abductor digiti minimi

A

Medial side proximal phalanx of 5th digit

175
Q

Innervation of abductor digiti minimi

A

Deep branch of ulnar nerve

176
Q

Action of abductor digiti minimi

A

Abducts 5th digit

177
Q

Origin of flexor digiti minimi

A

Hook of hamate and flexor retinaculum

178
Q

Insertion of flexor digiti minimi

A

Medial side of proximal phalanx of 5th digit

179
Q

Innervation of flexor digiti minimi

A

Deep branch of ulnar nerve

180
Q

Action of flexor digiti minimi

A

Flexes proximal phalanx of 5th digit

181
Q

Origin of oponens digiti minimi

A

Hook of hamate and flexor retinaculum

182
Q

Insertion of oponens digiti minimi

A

Medial border of 5th metacarpal

183
Q

Innervation of oponens digiti minimi

A

Deep branch of ulnar nerve

184
Q

Action of oponens digiti minimi

A

Draws 5th metacarpal anterior and medial towards midline of the hand

185
Q

Origin of dorsal interossei

A

Adjacent sides of metacarpals

186
Q

Insertion of dorsal interossei

A

Extensor expansions and bases of proximal phalanges of digits 2-4

187
Q

Innervation of dorsal interossei

A

Deep branch of ulnar nerve

188
Q

Action of dorsal interossei

A

Abducts digits from midline of hand, extension of interphalangeal joints

189
Q

Origin of palmer interossei

A

Palmer surface of metacarpals 2, 4, 5

190
Q

Insertion of palmer interossei

A

Extensor expansion at bases of proximal phalanges 2, 4, 5

191
Q

Innervation of palmer interossei

A

Deep branch of ulnar nerve

192
Q

Action of palmer interossei

A

Adduct digits towards midline of hand

Regional Anatomy (2 decks)

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