Upper Limb Flashcards
1
Q
Supraspinatus origin
A
Supraspinous fossa of scapula
2
Q
Supraspinatus insertion
A
superior facet of greater tubercle of humerus
3
Q
Supraspinatus innervation
A
Suprascapular nerve
C4-C6
4
Q
supraspinatus action
A
initiates (first 15 degrees) abduction of shoulder
5
Q
Infraspinatus origin
A
infraspinous fossa of scapula
6
Q
Infraspinatus insertion
A
middle facet of greater tubercle of humerus
7
Q
Infraspinatus innervation
A
Suprascapular nerve
C4-C6
8
Q
Infraspinatus action
A
External rotation of shoulder
9
Q
Teres minor origin
A
lateral border of scapula
10
Q
teres minor insertion
A
inferior facet greater tubercle of humerus
11
Q
Teres minor innervation
A
Axillary nerve
C5, C6
12
Q
Teres minor action
A
external rotation of shoulder
weak adduction
13
Q
subscapularis origin
A
subscapular fossa of scapula
14
Q
subscapularis insertion
A
lesser tubercle of humerus
15
Q
subscapularis innervation
A
Subscapular nerve
C5, C6
(upper and lower)
16
Q
subscapularis action
A
internal rotation
17
Q
Deltoid origin
A
lateral 1/3 of clavicle
acromion
spine of scap
18
Q
deltoid insertion
A
deltoid tuberosity of humerus
19
Q
Deltoid action
A
- clavicular part- flexion, internal rotation, adduction
- acromial part - abduction
- spinal part- extension, external rotation, adduction
20
Q
Deltoid innervation
A
Axillary nerve
C5, C6
21
Q
Teres major origin
A
inferior angle of scapula
22
Q
teres major insertion
A
crest of lesser tubercle of humerus
anterior angle
23
Q
teres major innervation
A
lower subscapular nerve
C5-C7
24
Q
teres major action
A
internal rotation
adduction
extension
25
Rotator Cuff muscles
- Teres minor
- Supraspinatus
- Infraspinatus
- Subscapularis
26
Triceps brachii long head origin
infraglenoid tubercle of scapula
27
triceps brachii long head insertion
olecranon of ulna
28
triceps brachii long head action
elbow joint extension
| shoulder joint extension and adduction
29
triceps brachii lateral head origin
posterior humerus, proximal to radial groove
| lateral intermuscular septum
30
triceps brachii lateral head insertion
olecranon of ulna
31
triceps brachii lateral head innervation
Radial nerve
| C6-C8
32
Triceps brachii lateral head action
elbow joint extension
33
Triceps brachii medial head origin
posterior humerus, inferior to radial groove
| medial intermuscular septum
34
triceps brachii medial head insertion
Olecranon of ulna
35
triceps brachii medial head innervation
Radial nerve
| C6-C8
36
triceps brachii long head innervation
radial nerve
| C6-C8
37
Pectoral girdle- anterior muscles
- Subclavius
- Serratus anterior
- Pectoralis minor
38
Pectoral girdle- posterior muscles
- trapezius
- levator scap
- rhomboid major and minor
39
Subclavius origin
1st rib
40
subclavius insertion
inferior surface of clavicle
41
subclavius innervation
nerve to subclavius
| C5, C6
42
Subclavius action
steadies clavicle in sternoclavicular joint
43
Pectoralis minor origin
3rd to 5th rib
44
pectoralis minor insertion
coracoid process
45
pectoralis minor innervation
medial pectoral nerve
| C8, T1
46
Pectoralis minor action
rotates glenoid inferiorly
depression of scap
protraction of scap
47
serratus anterior origin
ribs 1-9
48
serratus anterior insertion
medial border of scapula
49
serratus anterior innervation
long thoracic nerve
| C5-C7
50
serratus anterior action
```
protraction
lateral rotation (inferior part)
```
51
Pectoralis major origin
- medial half clavicle
- sternum and costal cartilages 1-6
- rectus sheath (anterior layer)
52
pectoralis major insertion
crest of greater tubercle of humerus
53
pectoralis major innervation
medial and lateral pectoral nn.
| C5-T1
54
Pectoralis major action
- adduction, internal rotation
| - (clavicular & sternocostal part) -flexion, assist in respiration
55
brachialis origin
distal half of anterior surface of humerus
56
brachialis insertion
ulnar tuberosity
57
anconeus origin
lateral epicondyle of humerus
58
anconeus insertion
olecranon of ulna (radial surface)
59
anconeus innervation
radial nerve
| C6-C8
60
anconeus action
stabilizes elbow joint
| weak extensor
61
pronator teres origin
humeral head- medial epicondyle of humerus
| ulna head- coronoid process
62
pronator teres insertion
lateral radius
| distal to supinator insertion
63
pronator teres innervation
median nerve
| C6,C7
64
pronator teres action
weak elbow flexor
| pronation
65
brachioradialis origin
distal humerus distal surface
| lateral intermuscular septum
66
brachioradialis insertion
styloid process of radius
67
brachioradialis innervation
radial nerve
| C5-C6
68
brachioradialis action
elbow flexion
| semipronation of forearm
69
coracobrachialis origin
coracoid process of ulna
70
coracobrachialis insertion
in line with the crest of the lesser tubercle of the humerus
71
coacobrachialis innervation
musculocutaneous n
| C5-C7
72
coracobrachialis action
flexion
adduction
internal rotation
73
Biceps brachii long head origin
supraglenoid tubercle of scap
74
biceps brachii long head insertion
radial tuberosity of humerus
75
biceps brachii innervation
musculocutaneous n. C5 C6
76
biceps brachii action
```
elbow flexion in supine position
supination
flexion of GH joint
abduction
internal rotation
```
77
biceps brachii short head origin
coracoid process of scap
78
biceps brachii short head insertion
radial tuberosity
79
Anterior forearm muscles - superficial
- Pronator teres
- Flexor carpi radialis
- Palmaris longus
- Flexor carpi ulnaris
80
pronator teres origin
medial epicondyle
| coronoid process of ulna
81
pronator teres instertion
lateral radius, distal to supinator insertion
82
pronator teres innervation
median nerve
| C6, C7
83
pronator teres action
pronate forearm
| weak elbow flexor
84
flexor carpi radialis origin
medial epicondyle of humerus
85
flexor carpi radialis insertion
base of 2nd metacarpal
86
flexor carpi radialis innervation
median n.
| C6, C7
87
flexor carpi radialis action
flex wrist
| radial deviation
88
palmaris longus origin
medial epicondyle of humerus
89
palmaris longus insertion
palmar aponeurosis
90
palmaris longus innervation
median n.
| C7,C8
91
palmaris longus action
tightens palmar aponeurosis
wrist flexion
weak elbow flexion
92
flexor carpi ulnaris origin
medial epicondyle
| olecranon process of ulna
93
flexor carpi ulnaris insertion
- pisiform
- hook of hamate
- base of 5th metacarpal
94
flexor carpi ulnaris innervation
ulnar n
| C7, T1
95
flexor carpi ulnaris action
flex wrist
| ulnar deviation
96
Anterior compartment of forearm- intermediate layer
flexor digitorum superficialis
97
flexor digitorum superficialis origin
humeroulnar head- medial epicondyle
| upper 1/2 anterior border of radius
98
flexor digitorum superficialis insertion
sides of middle phalanges of digits 2-5
99
flexor digitorum superficialis innervation
median n.
| C8, T1
100
flexor digitorum superficialis actions
wrist flexion
weak elbow flexor
flex MCP, PIP digits 2-5
101
anterior compartment of forearm -deep muscles
flexor digitorum profundus
flexor pollicis longus
pronator quatratus
102
flexor digitorum profundus origin
proximal 2/3 ulna
| interosseous membrane
103
flexor digitorum profundus insertion
distal phalanges digits 2-5
104
flexor digitorum profundus innervation
median n. C8, T1
| anterior interosseous branch of ulnar n. C8,T1
105
flexor digitorum profundus action
wrist flexor
| flex MCP, PIP, DIP digits 2-5
106
flexor pollicis longus origin
midanterior surface of radius
| interosseous membrane
107
flexor pollicis longus insertion
distal phalanx of thumb
108
flexor pollicis longus innervation
anterior interosseous branch of median n.
| C8, T1
109
flexor pollicis longus action
wrist flexion
radial deviation
flex MCP, IP of thumb
flex carpometacarpal of thumb
110
pronator quadratus origin
distal quarter of distal ulna
| anterior surface
111
pronator quadratus insertion
distal quarter of radius
| anterior surface
112
pronator quadratus innervation
anterior interosseous branch of median n.
| C8, T1
113
pronator quadratus action
pronation
| stabilize distal radioulnar joint
114
posterior muscles of forearm- radialis/ superficial
brachioradialis
extensor carpi radialis longus
extensor carpi radialis brevis
115
extensor carpi radialis longus origin
lateral supracondylar ridge of distal humerus
| lateral intermuscular septum
116
extensor carpi radialis longus insertion
base of 2nd metacarpal
| posterior side
117
extensor carpi radialis longus innervation
radial n.
| C6, C7
118
extensor carpi radialis longus action
wrist extension
weak elbow flexion
radial deviation
119
extensor carpi radialis brevis origin
lateral epicondyle of humerus
120
extensor carpi radialis brevis
base of 3rd metacarpal
121
extensor carpi radialis brevis innervation
radial n.
| C7, C8
122
extensor carpi radialis brevis action
extend wrist
weak elbow flexor
radial deviation
123
posterior compartment of forearm- superficial muscles
extensor digitorum
extensor digiti minimi
extensor carpi ulnaris
124
extensor digitorum origin
lateral epicondyle
| common head
125
extensor digitorum insertion
dorsal digital expansion digits 2-5
126
extensor digitorum innervation
posterior interosseous branch of radial n.
| C7, C8
127
extensor digitorum action
wrist extension
| extension/abduction - MCP, PIP, DIP digits 2-5
128
extensor digiti minimi origin
lateral epicondyle
| common head
129
extensor digiti minimi insertion
dorsal digital expansion of 5th digit
130
extensor digiti minimi innervation
posterior interosseous branch of radial n.
| C7, C8
131
extensor digit minimi action
wrist extension
ulnar deviation
extension/abduction MCP, PIP, DIP of 5th digit
132
extensor carpi ulnaris origin
lateral epicondyle
| common head
133
extensor carpi ularis insertion
base of 5th metacarpal
134
extensor carpi ulnaris innervation
posterior interosseous branch of radial n.
| C7, C8
135
extensor carpi ulnaris action
ulnar deviation
| wrist extension
136
posterior compartment- deep forearm muscles
```
supinator
abductor pollicis longus
extensor pollicis brevis
extensor pollicis longus
extensor indicis
```
137
supinator origin
lateral epicondyle
olecranon of ulna
radial collateral lig
annular lig of radius
138
supinator insertion
radius between radial tuberosity and insertion of pronator teres
139
supinator innervation
posterior interosseous branch of radial n.
| C6, C7
140
supinator action
supinate radioulnar joints
141
abductor pollicis longus origin
posterior surface radius and ulna
| interosseous membrane
142
abductor pollicis longus insertion
base of 1st metacarpal
143
abductor pollicis longus innervation
posterior interosseous branch of radial n.
| C7,C8
144
abductor pollicis longus action
radial deviation
| abduct carpometacarpal of thumb
145
extensor pollicis brevi origin
dorsal surface radius
| interosseous membrane
146
extensor pollicis brevis insertion
base of proximal phalanx of thumb
147
extensor pollicis brevis innervation
posterior interosseous branch of radial n.
| C7, C8
148
extensor pollicis brevis action
extends carpometacarpal and MCP
| radial deviation
149
extensor pollicis longus origin
dorsal surface of ulna
| interosseous membrane
150
extensor pollicis longus insertion
base of distal phalanx of thumb
151
extensor pollicis longus innervation
posterior interosseous branch of radial n.
| C7, C8
152
extensor pollicis longus acion
radial deviation
wrist extension
adduct carpometacarpal of thumb
extend MCP, IP
153
extensor indicis origin
posterior surface ulna
| interosseous membrane
154
extensor indicis insertion
posterior digital extension 2nd digit
155
extensor indicis innervation
posterior interosseous branch of radial n
| C7, C8
156
extensor indicis action
wrist extension
| extend MCP, PIP, DIP of 2nd digit
157
adductor pollicis oblique
O:capitate & base of 2nd and 3rd metacarpal
I: base of prox phalanx of thumb
A: CMC adduction, MCP flexion
-ulnar n. C8,T1
158
adductor pollicis transverse
O: 3rd metacarpal
I: base of prox phalanx of thumb
A: CMC adduction, MCP flexion
-ulnar n. C8, T1
159
abductor pollicis brevis
O:scaphoid & trapezium, flexor retinaculum
I: base of prox phalanx of thumb
A: CMC abduction of thumb
median n. C8, T1
160
flexor pollicis brevis
O: flexor retinaculum, capitate & trapezium
I: base of prox phalanx of thumb
A: CMC felxion of thumb
median n. C8, T1
161
oppones pollics
O-trapezium
I: radial border 1st metacarpal
A: CMC opposition of thumb
median n C8, T1
162
abductor digiti minimi
O: pisiform
I: base 5th prox phalanx, DDE 5th digit
A: abduction, flexion MCP little finger
DIP, PIP extension
ulnar n. C8, T1
163
Flexor digiti minimi brevis
O: hook of hamate, flexor retinaculum
I: base of 5th prox phalanx
A: flex MCP little finger
164
opponens digiti minimi
O: hook of hamate, flexor retinaculum
I: 5th prox phalanx ulnar border
A: opposition MCP little finger
ulnar n. C8, T1
