Muscles of the Upper Extremities Flashcards
(159 cards)
1
Q
coracobrachialis origin
A
apex of the coracoid process by a common tendon with short head of the biceps
2
Q
coracobrachialis insertion
A
medial aspect of middle shaft of the humerus
3
Q
coracobrachialis innervation
A
musculocutaneous nerve
4
Q
deltoid origin: anterior part
A
anterior surface of the lateral end of the clavicle
5
Q
deltoid origin: middle part
A
superior surface of the lateral edge of the acromion
6
Q
deltoid origin: posterior part
A
posterior border of the spine of the scapula
7
Q
deltoid insertion
A
deltoid tuberosity of the humerus
8
Q
deltoid innervation
A
axillary nerve
9
Q
infraspinatus origin
A
infraspinatus fossa
10
Q
infraspinatus insertion
A
middle facet of the greater tubercle of the humerus
11
Q
infraspinatus innervation
A
suprascapular nerve
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
13
Q
latissimus dorsi insertion
A
floor of the intertubercular groove of the humerus
14
Q
latissimus dorsi innervation
A
middle subscapular (thoracodorsal) nerve
15
Q
levator scapula origin
A
transverse processes of C1-2 & posterior tubercles of transverse processes of C3-4
16
Q
levator scapula insertion
A
medial border of the scapula between the superior angle & root of the spine
17
Q
levator scapula innervation
A
ventral rami of spinal nerves (C3-4) & the dorsal scapular nerve
18
Q
pectoralis major origin: clavicular head
A
anterior margin of the medial one half of the clavicle
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
20
Q
pectoralis insertion
A
crest of the greater tubercle of the humerus
21
Q
pectoralis innervation: clavicular head
A
lateral pectoral nerve
22
Q
pectoralis innervation: sternoclavicular head
A
lateral & medial pectoral nerve
23
Q
pectoralis minor origin
A
external surfaces of the third through the 5th ribs
24
Q
pectoralis minor insertion
A
medial border of the coracoid process
25
pectoralis minor innervation
medial pectoral nerve
26
rhomboid major & minor origin
ligamentous nuchae & spinous processes of C7-T5
27
rhomboid major & minor insertion
medial border of scapula, from the root of the spine to the inferior angle
28
rhomboid major & minor innervation
dorsal scapular nerve
29
serratus anterior origin
external surface of the lateral region of the 1st to 9th ribs
30
serratus anterior insertion
entire medial border of the scapula, with a concentration of fibers near the inferior angle
31
serratus anterior innervation
long thoracic nerve
32
subclavius origin
near the cartilage of the 1st rib
33
subclavius insertion
inferior surface of the middle aspect of the clavicle
34
subclavius innervation
branch from the upper trunk of the brachial plexus (C5-6)
35
subscapularis origin
subscapular fossa
36
subscapularis insertion
lesser tubercle of the humerus
37
subscapular innervation
upper & lower subscapular nerves
38
supraspinatus origin
suprapsinatus fossa
39
supraspinatus insertion
upper facet of the greater tubercle of the humerus
40
supraspinatus innervation
suprascapular nerve
41
teres major origin
inferior anlge of the scapula
42
teres major insertion
crest of the lesser tubercle of hte humerus
43
teres major innervation
lower subscapular nerve
44
teres minor origin
posterior surface of the lateral border of the scapula
45
teres minor insertion
lower facet of the greater tubercle of the humerus
46
teres minor innervation
axillary nerve
47
trapezius origin
medial part of superior nuchal line & external occipital protuberance, ligamentum nuchae, spinous processes & supraspinous ligaments of the 7th cervical vertebrae & all thoracic vertebrae
48
trapezius insertion: upper part
posterior-superior edge of the lateral 1/3 of the clavicle
49
trapezius insertion: middle part
medial margin of the acromion & upper lip of the spine of the scapula
50
trapezius insertion: lower part
medial end of the spine of the scapula, just lateral to the root
51
trapezius innervation
primarily by the spinal accessory nerve (cranial nerve XI); secondary innervation directly from ventral rami of C2-4
52
anconeus origin
posterior side of the lateral epicondyle of the humerus
53
anconeus insertion
between the olecranon process & proximal surface of the posterior side of the ulna
54
anconeus innervation
radial nerve
55
biceps brachii origin: long head
supraglenoid tubercle of the scapula
56
biceps brachii origin: short head
apex of the coracoid process of the scapula
57
biceps brachii insertion
bicipital tuberosity of the radius; also to deep connective tissue within the forearm via the fibrous lacertus
58
biceps brachii innervation
musculocutaneous nerve
59
brachialis origin
distal aspect of the anterior surface of the humerus
60
brachialis insertion
coronoid process & tuberosity on the proximal ulna
61
brachialis innervation
musculocutaneous nerve (small contribution from the radial nerve)
62
brachioradialis origin
upper 2/3 of the lateral supracondylar ridge of the humerus
63
brachioradialis insertion
near styloid process at the distal radius
64
brachioradialis innervation
radial nerve
65
pronator teres origin: humeral head
medial epicondyle
66
prontator teres origin: ulnar head
medial to the tuberosity of the ulna
67
pronator teres insertion
lateral surface of the middle radius
68
pronator teres innervation
median nerve
69
pronator quadratus origin
anterior surface of the distal ulna
70
pronator quadratus insertion
anterior surface of the distal radius
71
pronator quadratus innervation
median nerve
72
supinator origin
lateral epicondyle of the humerus, radial collateral & annular ligaments, & supinator crest of the ulna
73
supinator insertion
lateral surface of the proximal radius
74
supinator innervation
radial nerve
75
triceps origin: long head
infraglenoid tubercle of the scapula
76
triceps origin: lateral head
posterior humerus, superior & lateral to the radial groove
77
triceps origin: medial head
posterior humerus, inferior & medial to the radial groove
78
triceps insertion
olecranon process of the ulna
79
triceps innervation
radial nerve
80
extensor carpi radialis brevis origin
common extensor-supinator tendon attaching to the lateral epicondyle of the humerus
81
extensor carpi radialis brevis insertion
radial-posterior surface of the base of the third metacarpal
82
extensor carpi radialis brevis innervation
radial nerve
83
extensor carpi radialis longus origin
common extensor-supinator tendon attaching to the lateral epidcondyle of the humerus & the distal part of the lateral supracondylar ridge of the humerus
84
extensor carpi radialis longus insertion
radial-posterior surface of the base of the second metacarpal
85
extensor carpi radialis longus innervation
radial nerve
86
extensor carpi ulnaris origin
common extensory-supinator tendon attaching to the lateral epicondyle of the humerus & the posterior border of the middle 1/3 of the ulna
87
extensor carpi ulnaris insertion
posterior-ulnar surface of the base of the 5th metacarpal
88
extensor capri ulnaris innervation
radial nerve
89
flexor carpi radialis origin
common flexor-pronator tendon attaching to the medial epicondyle of the humerus
90
flexor carpi radialis insertion
palmar surface of the base of the second metacarpal and a small slip to the base of the 3rd metacarpal
91
flexor carpi radialis innervation
median nerve
92
flexor carpi ulnaris origin: humeral head
common flexor-pronator tendon attaching to the medial epicondyle of the humerus
93
flexor carpi ulnaris origin: ulnar head
posterior border of the middle 1/3 of the ulna
94
flexor carpi ulnaris insetion
pisiform bone, pisohamate & pisometacapral ligaments, & palmar base of the 5th metacarpal bone
95
flexor carpi ulnaris innervation
ulnar nerve
96
palmaris longus origin
common flexor-prnoator tendon attaching to the medial epicondyle of the humerus
97
palmaris longus insertion
central part of the transverse carpal ligament & palmart aponeurosis of the hand
98
palmaris longus innervation
median nerve
99
abductor pollicis longus origin
posterior surface of the middle part of the raidus & ulna, & adjacent interosseous membrane
100
abductor pollicis longus insertion
radial-dorsal surface of the base of the thumb metacarpal, including the capsule of the carpometacarpal joint of the thumb
101
abductor pollicis longus innervation
radial nerve
102
extensor digitorum communis origin
common extensor-supinator tendon attaching to the lateral epicondyle of the humerus
103
extensor digitorum communis insertion
by 4 tendons, each to the base of the extensor mechanism & to the dorsal base of the proximal phalanx of the fingers
104
extensor digitorum communis innervation
radial nerve
105
extensor digiti minimi origin
ulnar side of the belly of the extensor digitorum
106
extensor digiti minimi insertion
tendon usually divides, joining the ulnar side of the tendon of the extensor digitorum
107
extensor digiti minimi innervation
radial nerve
108
extensor indicis origin
posterior surface of the middle to distal part of the ulna & adjacent interosseous membrane
109
extensor indicis insertion
tendon blends with the ulnar side of the index tendon of the extensor digitorum
110
extensor indicis innervation
radial nerve
111
extensor pollicis brevis origin
posterior surface of the middle to distal parts of the radius & adjacent interosseous membrane
112
extensor pollicis brevis insertion
dorsal base of the proximal phalanx & extensor mechanism of the thumb
113
extensor pollicis brevis innervation
radial nerve
114
extensor pollicis longus origin
posterior surface of the middle part of the ulna & adjacent interosseous membrane
115
extensor pollicis longus insertion
dorsal base of the distal phalanx & extensor mechanism of the thumb
116
extensor pollicis longus innervation
radial nerve
117
flexor digitorum profundus origin
proximal 3/4 of the anterior & medial side of the ulna & adjacent interosseous membranes
118
flexor digitorum profundus insertion
by 4 tendons, each to the palmar base of the distal phalanges of the fingers
119
flexor digitorum profundus innervation: medial half
ulnar nerve
120
flexor digitorum profundus innervation: lateral half
median nerve
121
flexor digitorum superficialis origin: humeroulnar head
common flexor-pronator tendon attaching to the medial epicondyle of the humerus & the medial side of the coronoid process of the ulna
122
flexor digitorum superficialis origin: radial head
oblique line just distal & lateral to the bicipital tuberosity
123
flexor digitorum superficialis insertion
by 4 tendons, each to the sides of the middle phalanges of the fingers
124
flexor digitorum superficialis innervation
median nerve
125
flexor pollicis longus origin
middle part of the anterior surface of the radius & adjacent interosseous membrane
126
flexor pollicis longus insertion
palmar base of the distal phalanx of the thumb
127
flexor pollicis longus innervation
median nerve
128
abductor digiti minimi origin
pisohamate ligament, psiform bone, & tendon of the flexor carpi ulnaris
129
abductor digiti minimi insertion
ulnar side of the base of the proximal phalanx of the little finger; also attaches into the extensor mechanism of the little finger
130
abductor digiti minimi innervation
ulnar nerve
131
abductor pollicis brevis origin
transverse carpal ligament, palmar tubercles of the trapezium & scaphoid bones
132
abductor pollicis brevis insertion
radial side fo the base of the proximal phalanx of the thumb; also attaches into the extensor mechanism of the thumb
133
abductor pollicis brevis innervation
median nerve
134
adductor pollicis origin: oblique head
capitate bone, base of the 2nd & 3rd metacarpal, & adjacent capsular ligaments of the carpometacarpal joints
135
adductor pollicis origin: transverse head
palmar surface of the 3rd metacarpal
136
adductor pollicis insertion
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
adductor pollicis innervation
ulnar nerve
138
dorsal interossei innervation
ulnar nerve
139
flexor digiti minimi origin
transverse carpal ligament & hook of the hamate
140
flexor digiti minimi insertion
ulnar side of the base of the proximal phalanx of the little finger
141
flexor digiti minimi innervation
ulnar nerve
142
flexor pollicis brevis origin
transverse carpal ligament & palmar tubercle of the trapezium
143
flexor pollicis brevis insertion
radial side of the base of the proximal phalanx of the thumb; also to the lateral sesamoid bone at the metacarpophalangeal joint
144
flexor pollicis brevis innervation
median nerve
145
lumbricals origin: medial two
adjacent sides of the flexor digitorum profundus tendons of the little, ring, & middle fingers
146
lumbricals origin: lateral two
lateral sides of the flexor digitorum profundus tendons of the middle & index fingers
147
lumbricals insertion
lateral margin of the extensor mechanism via the oblique fibers of the dorsal hood
148
lumbricals innervation: medial two
ulnar nerve
149
lumbricals innervation: lateral two
median nerve
150
opponens digiti minimi origin
transverse carpal ligament & hook of the hamate
151
opponens digiti minimi insertion
ulnar surface of the shaft of the 5th metacarpal
152
oponens digiti minimi innervation
ulnar nerve
153
opponens pollicis origin
transverse carpal ligament & palmar tubercle of the trapezium
154
opponens pollicis insertion
radial surface of the shaft of the thumb metacarpal
155
opponens pollicis innervation
median nerve
156
palmaris brevis origin
transverse carpal ligament & palmar fascia just distal & lateral to the pisiform bone
157
palmaris brevis insertion
skin on the ulnar border of the hand
158
palmaris brevis innervation
ulnar nerve
159
palmar interossei innervation
ulnar nerve
