Muscles of the Upper Extremities Flashcards

1
Q

coracobrachialis origin

A

apex of the coracoid process by a common tendon with short head of the biceps

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2
Q

coracobrachialis insertion

A

medial aspect of middle shaft of the humerus

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3
Q

coracobrachialis innervation

A

musculocutaneous nerve

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4
Q

deltoid origin: anterior part

A

anterior surface of the lateral end of the clavicle

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5
Q

deltoid origin: middle part

A

superior surface of the lateral edge of the acromion

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6
Q

deltoid origin: posterior part

A

posterior border of the spine of the scapula

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7
Q

deltoid insertion

A

deltoid tuberosity of the humerus

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8
Q

deltoid innervation

A

axillary nerve

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9
Q

infraspinatus origin

A

infraspinatus fossa

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10
Q

infraspinatus insertion

A

middle facet of the greater tubercle of the humerus

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11
Q

infraspinatus innervation

A

suprascapular nerve

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12
Q

latissimus dorsi origin

A

posterior layer of the thoracolumbar fascia, spinous processes & supraspinous ligaments of the lower half of the thoracic vertebrae & all lumber vertebrae, median sacral crest, posterior crest of the ilium, lower four ribs, small area near the inferior angle of the scapula, and muscular interdigitations from the obliquus external abdominis

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13
Q

latissimus dorsi insertion

A

floor of the intertubercular groove of the humerus

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14
Q

latissimus dorsi innervation

A

middle subscapular (thoracodorsal) nerve

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15
Q

levator scapula origin

A

transverse processes of C1-2 & posterior tubercles of transverse processes of C3-4

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16
Q

levator scapula insertion

A

medial border of the scapula between the superior angle & root of the spine

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17
Q

levator scapula innervation

A

ventral rami of spinal nerves (C3-4) & the dorsal scapular nerve

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18
Q

pectoralis major origin: clavicular head

A

anterior margin of the medial one half of the clavicle

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19
Q

pectoralis major origin: sternocostal head

A

lateral margin of the manubrium & body of the sternum & cartilages of the first six or seven ribs. the costal fibers bled with muscular slips from the obliquus external abdominis

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20
Q

pectoralis insertion

A

crest of the greater tubercle of the humerus

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21
Q

pectoralis innervation: clavicular head

A

lateral pectoral nerve

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22
Q

pectoralis innervation: sternoclavicular head

A

lateral & medial pectoral nerve

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23
Q

pectoralis minor origin

A

external surfaces of the third through the 5th ribs

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24
Q

pectoralis minor insertion

A

medial border of the coracoid process

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25
Q

pectoralis minor innervation

A

medial pectoral nerve

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26
Q

rhomboid major & minor origin

A

ligamentous nuchae & spinous processes of C7-T5

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27
Q

rhomboid major & minor insertion

A

medial border of scapula, from the root of the spine to the inferior angle

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28
Q

rhomboid major & minor innervation

A

dorsal scapular nerve

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29
Q

serratus anterior origin

A

external surface of the lateral region of the 1st to 9th ribs

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30
Q

serratus anterior insertion

A

entire medial border of the scapula, with a concentration of fibers near the inferior angle

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31
Q

serratus anterior innervation

A

long thoracic nerve

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32
Q

subclavius origin

A

near the cartilage of the 1st rib

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33
Q

subclavius insertion

A

inferior surface of the middle aspect of the clavicle

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34
Q

subclavius innervation

A

branch from the upper trunk of the brachial plexus (C5-6)

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35
Q

subscapularis origin

A

subscapular fossa

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36
Q

subscapularis insertion

A

lesser tubercle of the humerus

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37
Q

subscapular innervation

A

upper & lower subscapular nerves

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38
Q

supraspinatus origin

A

suprapsinatus fossa

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39
Q

supraspinatus insertion

A

upper facet of the greater tubercle of the humerus

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40
Q

supraspinatus innervation

A

suprascapular nerve

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41
Q

teres major origin

A

inferior anlge of the scapula

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42
Q

teres major insertion

A

crest of the lesser tubercle of hte humerus

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43
Q

teres major innervation

A

lower subscapular nerve

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44
Q

teres minor origin

A

posterior surface of the lateral border of the scapula

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45
Q

teres minor insertion

A

lower facet of the greater tubercle of the humerus

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46
Q

teres minor innervation

A

axillary nerve

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47
Q

trapezius origin

A

medial part of superior nuchal line & external occipital protuberance, ligamentum nuchae, spinous processes & supraspinous ligaments of the 7th cervical vertebrae & all thoracic vertebrae

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48
Q

trapezius insertion: upper part

A

posterior-superior edge of the lateral 1/3 of the clavicle

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49
Q

trapezius insertion: middle part

A

medial margin of the acromion & upper lip of the spine of the scapula

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50
Q

trapezius insertion: lower part

A

medial end of the spine of the scapula, just lateral to the root

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51
Q

trapezius innervation

A

primarily by the spinal accessory nerve (cranial nerve XI); secondary innervation directly from ventral rami of C2-4

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52
Q

anconeus origin

A

posterior side of the lateral epicondyle of the humerus

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53
Q

anconeus insertion

A

between the olecranon process & proximal surface of the posterior side of the ulna

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54
Q

anconeus innervation

A

radial nerve

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55
Q

biceps brachii origin: long head

A

supraglenoid tubercle of the scapula

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56
Q

biceps brachii origin: short head

A

apex of the coracoid process of the scapula

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57
Q

biceps brachii insertion

A

bicipital tuberosity of the radius; also to deep connective tissue within the forearm via the fibrous lacertus

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58
Q

biceps brachii innervation

A

musculocutaneous nerve

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59
Q

brachialis origin

A

distal aspect of the anterior surface of the humerus

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60
Q

brachialis insertion

A

coronoid process & tuberosity on the proximal ulna

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61
Q

brachialis innervation

A

musculocutaneous nerve (small contribution from the radial nerve)

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62
Q

brachioradialis origin

A

upper 2/3 of the lateral supracondylar ridge of the humerus

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63
Q

brachioradialis insertion

A

near styloid process at the distal radius

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64
Q

brachioradialis innervation

A

radial nerve

65
Q

pronator teres origin: humeral head

A

medial epicondyle

66
Q

prontator teres origin: ulnar head

A

medial to the tuberosity of the ulna

67
Q

pronator teres insertion

A

lateral surface of the middle radius

68
Q

pronator teres innervation

A

median nerve

69
Q

pronator quadratus origin

A

anterior surface of the distal ulna

70
Q

pronator quadratus insertion

A

anterior surface of the distal radius

71
Q

pronator quadratus innervation

A

median nerve

72
Q

supinator origin

A

lateral epicondyle of the humerus, radial collateral & annular ligaments, & supinator crest of the ulna

73
Q

supinator insertion

A

lateral surface of the proximal radius

74
Q

supinator innervation

A

radial nerve

75
Q

triceps origin: long head

A

infraglenoid tubercle of the scapula

76
Q

triceps origin: lateral head

A

posterior humerus, superior & lateral to the radial groove

77
Q

triceps origin: medial head

A

posterior humerus, inferior & medial to the radial groove

78
Q

triceps insertion

A

olecranon process of the ulna

79
Q

triceps innervation

A

radial nerve

80
Q

extensor carpi radialis brevis origin

A

common extensor-supinator tendon attaching to the lateral epicondyle of the humerus

81
Q

extensor carpi radialis brevis insertion

A

radial-posterior surface of the base of the third metacarpal

82
Q

extensor carpi radialis brevis innervation

A

radial nerve

83
Q

extensor carpi radialis longus origin

A

common extensor-supinator tendon attaching to the lateral epidcondyle of the humerus & the distal part of the lateral supracondylar ridge of the humerus

84
Q

extensor carpi radialis longus insertion

A

radial-posterior surface of the base of the second metacarpal

85
Q

extensor carpi radialis longus innervation

A

radial nerve

86
Q

extensor carpi ulnaris origin

A

common extensory-supinator tendon attaching to the lateral epicondyle of the humerus & the posterior border of the middle 1/3 of the ulna

87
Q

extensor carpi ulnaris insertion

A

posterior-ulnar surface of the base of the 5th metacarpal

88
Q

extensor capri ulnaris innervation

A

radial nerve

89
Q

flexor carpi radialis origin

A

common flexor-pronator tendon attaching to the medial epicondyle of the humerus

90
Q

flexor carpi radialis insertion

A

palmar surface of the base of the second metacarpal and a small slip to the base of the 3rd metacarpal

91
Q

flexor carpi radialis innervation

A

median nerve

92
Q

flexor carpi ulnaris origin: humeral head

A

common flexor-pronator tendon attaching to the medial epicondyle of the humerus

93
Q

flexor carpi ulnaris origin: ulnar head

A

posterior border of the middle 1/3 of the ulna

94
Q

flexor carpi ulnaris insetion

A

pisiform bone, pisohamate & pisometacapral ligaments, & palmar base of the 5th metacarpal bone

95
Q

flexor carpi ulnaris innervation

A

ulnar nerve

96
Q

palmaris longus origin

A

common flexor-prnoator tendon attaching to the medial epicondyle of the humerus

97
Q

palmaris longus insertion

A

central part of the transverse carpal ligament & palmart aponeurosis of the hand

98
Q

palmaris longus innervation

A

median nerve

99
Q

abductor pollicis longus origin

A

posterior surface of the middle part of the raidus & ulna, & adjacent interosseous membrane

100
Q

abductor pollicis longus insertion

A

radial-dorsal surface of the base of the thumb metacarpal, including the capsule of the carpometacarpal joint of the thumb

101
Q

abductor pollicis longus innervation

A

radial nerve

102
Q

extensor digitorum communis origin

A

common extensor-supinator tendon attaching to the lateral epicondyle of the humerus

103
Q

extensor digitorum communis insertion

A

by 4 tendons, each to the base of the extensor mechanism & to the dorsal base of the proximal phalanx of the fingers

104
Q

extensor digitorum communis innervation

A

radial nerve

105
Q

extensor digiti minimi origin

A

ulnar side of the belly of the extensor digitorum

106
Q

extensor digiti minimi insertion

A

tendon usually divides, joining the ulnar side of the tendon of the extensor digitorum

107
Q

extensor digiti minimi innervation

A

radial nerve

108
Q

extensor indicis origin

A

posterior surface of the middle to distal part of the ulna & adjacent interosseous membrane

109
Q

extensor indicis insertion

A

tendon blends with the ulnar side of the index tendon of the extensor digitorum

110
Q

extensor indicis innervation

A

radial nerve

111
Q

extensor pollicis brevis origin

A

posterior surface of the middle to distal parts of the radius & adjacent interosseous membrane

112
Q

extensor pollicis brevis insertion

A

dorsal base of the proximal phalanx & extensor mechanism of the thumb

113
Q

extensor pollicis brevis innervation

A

radial nerve

114
Q

extensor pollicis longus origin

A

posterior surface of the middle part of the ulna & adjacent interosseous membrane

115
Q

extensor pollicis longus insertion

A

dorsal base of the distal phalanx & extensor mechanism of the thumb

116
Q

extensor pollicis longus innervation

A

radial nerve

117
Q

flexor digitorum profundus origin

A

proximal 3/4 of the anterior & medial side of the ulna & adjacent interosseous membranes

118
Q

flexor digitorum profundus insertion

A

by 4 tendons, each to the palmar base of the distal phalanges of the fingers

119
Q

flexor digitorum profundus innervation: medial half

A

ulnar nerve

120
Q

flexor digitorum profundus innervation: lateral half

A

median nerve

121
Q

flexor digitorum superficialis origin: humeroulnar head

A

common flexor-pronator tendon attaching to the medial epicondyle of the humerus & the medial side of the coronoid process of the ulna

122
Q

flexor digitorum superficialis origin: radial head

A

oblique line just distal & lateral to the bicipital tuberosity

123
Q

flexor digitorum superficialis insertion

A

by 4 tendons, each to the sides of the middle phalanges of the fingers

124
Q

flexor digitorum superficialis innervation

A

median nerve

125
Q

flexor pollicis longus origin

A

middle part of the anterior surface of the radius & adjacent interosseous membrane

126
Q

flexor pollicis longus insertion

A

palmar base of the distal phalanx of the thumb

127
Q

flexor pollicis longus innervation

A

median nerve

128
Q

abductor digiti minimi origin

A

pisohamate ligament, psiform bone, & tendon of the flexor carpi ulnaris

129
Q

abductor digiti minimi insertion

A

ulnar side of the base of the proximal phalanx of the little finger; also attaches into the extensor mechanism of the little finger

130
Q

abductor digiti minimi innervation

A

ulnar nerve

131
Q

abductor pollicis brevis origin

A

transverse carpal ligament, palmar tubercles of the trapezium & scaphoid bones

132
Q

abductor pollicis brevis insertion

A

radial side fo the base of the proximal phalanx of the thumb; also attaches into the extensor mechanism of the thumb

133
Q

abductor pollicis brevis innervation

A

median nerve

134
Q

adductor pollicis origin: oblique head

A

capitate bone, base of the 2nd & 3rd metacarpal, & adjacent capsular ligaments of the carpometacarpal joints

135
Q

adductor pollicis origin: transverse head

A

palmar surface of the 3rd metacarpal

136
Q

adductor pollicis insertion

A

both heads attach on the ulnar side of the base of the proximal phalanx of the thumb & to the medial sesamoid boen at the metacarpophalangeal joint; also attaches into the extensor mechanism of the thumb

137
Q

adductor pollicis innervation

A

ulnar nerve

138
Q

dorsal interossei innervation

A

ulnar nerve

139
Q

flexor digiti minimi origin

A

transverse carpal ligament & hook of the hamate

140
Q

flexor digiti minimi insertion

A

ulnar side of the base of the proximal phalanx of the little finger

141
Q

flexor digiti minimi innervation

A

ulnar nerve

142
Q

flexor pollicis brevis origin

A

transverse carpal ligament & palmar tubercle of the trapezium

143
Q

flexor pollicis brevis insertion

A

radial side of the base of the proximal phalanx of the thumb; also to the lateral sesamoid bone at the metacarpophalangeal joint

144
Q

flexor pollicis brevis innervation

A

median nerve

145
Q

lumbricals origin: medial two

A

adjacent sides of the flexor digitorum profundus tendons of the little, ring, & middle fingers

146
Q

lumbricals origin: lateral two

A

lateral sides of the flexor digitorum profundus tendons of the middle & index fingers

147
Q

lumbricals insertion

A

lateral margin of the extensor mechanism via the oblique fibers of the dorsal hood

148
Q

lumbricals innervation: medial two

A

ulnar nerve

149
Q

lumbricals innervation: lateral two

A

median nerve

150
Q

opponens digiti minimi origin

A

transverse carpal ligament & hook of the hamate

151
Q

opponens digiti minimi insertion

A

ulnar surface of the shaft of the 5th metacarpal

152
Q

oponens digiti minimi innervation

A

ulnar nerve

153
Q

opponens pollicis origin

A

transverse carpal ligament & palmar tubercle of the trapezium

154
Q

opponens pollicis insertion

A

radial surface of the shaft of the thumb metacarpal

155
Q

opponens pollicis innervation

A

median nerve

156
Q

palmaris brevis origin

A

transverse carpal ligament & palmar fascia just distal & lateral to the pisiform bone

157
Q

palmaris brevis insertion

A

skin on the ulnar border of the hand

158
Q

palmaris brevis innervation

A

ulnar nerve

159
Q

palmar interossei innervation

A

ulnar nerve