forearm - insertion, action, innervation Flashcards
1
Q
Pronator teres - proximal origin
A
Coronoid process of ulna
2
Q
Pronator teres - distal insertion
A
lateral surface of radius
3
Q
Pronator teres - action
A
- Pronation (with pronator quadratus)
- Flexion of elbow
4
Q
Pronator teres - innervation
A
Median nerve (C6, C7)
5
Q
pronator quadratus - proximal origin
A
Distal ¼ of anterior surface of ulna
6
Q
pronator quadratus - distal insertion
A
distal ¼ of anterior surface of radius
7
Q
pronator quadratus - action
A
Pronation (with pronator teres)
8
Q
pronator quadratus - innervation
A
Anterior interosseous nerve (median nerve)
(C8, T1)
9
Q
flexor carpi radialis - proximal origin
A
Medial epicondyle of humerus
10
Q
flexor carpi radialis - distal insertion
A
base of 2nd (3rd ) metacarpal
11
Q
flexor carpi radialis - action
A
Abduction (radial deviation)
Flexion
12
Q
flexor carpi radialis - innervation
A
Median nerve
(C6, C7)
13
Q
palmaris longus - proximal origin
A
Medial epicondyle of humerus
14
Q
palmaris longus - distal insertion
A
flexor retinaculum, palmar aponeurosis
15
Q
palmaris longus - action
A
- Flexion
- Tenses palmar aponeurosis
16
Q
palmaris longus - innervation
A
Median nerve
(C7, C8)
17
Q
flexor carpi ulnaris - proximal origin
A
Olecranon, posterior border of ulna
18
Q
flexor carpi ulnaris - distal insertion
A
pisiform, hook of hamate, 5th metacarpal
19
Q
flexor carpi ulnaris - action
A
- Adduction (ulnar deviation)
- Flexion
20
Q
flexor carpi ulnaris - innervation
A
Ulnar nerve
(C7, C8)
Ulnar nerve passes between heads of FCU and FDP
Medial to ulnar artery
21
Q
flexor digitorum superficialis - proximal origin
A
Medial epicondyle, coronoid process
22
Q
flexor digitorum superficialis - distal insertion
A
2-5 middle phalanges
23
Q
flexor digitorum superficialis - action
A
Flexion of wrist
MCP and proximal IP joints
24
Q
flexor digitorum superficialis - innervation
A
Median nerve
(C7, C8, T1)
25
flexor digitorum profundus - proximal origin
Proximal ¾ of med. ulna
26
flexor digitorum profundus - distal insertion
bases of distal phalanges 2-5 digits
27
flexor digitorum profundus - action
Flexion of wrist and all IP joints
28
flexor digitorum profundus - innervation
Medial half: ulnar nerve
Lateral half: median nerve (**C8**, T1)
29
Flexor pollicis longus - proximal origin
Ant. Surface of radius
30
Flexor pollicis longus - distal insertion
base of distal phalanx of thumb
31
Flexor pollicis longus - action
Flexion of wrist and MCP, IP joints of thumb
32
Flexor pollicis longus - innervation
Anterior interosseous nerve (median nerve)
(C8, **T1**)
33
supinator - proximal origin
Common extensor origin
34
supinator - distal insertion
proximal 1/3 radius
35
supinator - action
supination
36
supinator - innervation
Deep branch of radial nerve (**C7**, C8)
37
brachioradialis - proximal origin
Supra-epicondylar ridge of humerus
38
brachioradialis - distal insertion
distal end of radius, styloid process
39
brachioradialis - action
Flexion of forearm (maximal when forearm midpronated)
40
brachioradialis - innervation
Radial nerve
(C5,**C6**, C7)
41
extensor carpi radialis longus - proximal origin
Supra-epicondylar ridge of humerus
42
extensor carpi radialis longus - distal insertion
base of second metacarpal (dorsal)
43
extensor carpi radialis longus - action
Abduction (radial deviation with FCR)
Extension
-of wrist
44
extensor carpi radialis longus - innervation
Radial nerve
| (C6, C7)
45
extensor carpi radialis brevis - proximal origin
Common extensor origin
46
extensor carpi radialis brevis - distal insertion
base of 3rd metacarpal (dorsal)
47
extensor carpi radialis brevis - action
Abduction (radial deviation with FCR)
Extension
-of wrist
48
extensor carpi radialis brevis - innervation
Radial nerve – Deep branch
(**C7**, C8)
49
extensor carpi ulnaris - proximal origin
common extensor origin
50
extensor carpi ulnaris - distal insertion
base of 5th metacarpal (dorsal)
51
extensor carpi ulnaris - action
extends and adducts wrist joint (ulnar deviation)
52
extensor carpi ulnaris - innervation
Posterior interosseous nerve – deep radial nerve
(**C7**, C8)
53
Extensor digitorum - proximal origin
common extensor origin
54
Extensor digitorum - distal insertion
medial 4 digits
55
Extensor digitorum - action
extension of 4 digits
56
Extensor digitorum - innervation
posterior interosseous nerve – deep radial nerve
(**C7**, C8)
57
Extensor digiti minimi - proximal origin
common extensor origin
58
Extensor digiti minimi - distal insertion
5th finger
59
Extensor digiti minimi - action
Extension of 5th digit
60
Extensor digiti minimi - innervation
Posterior interosseous nerve – deep radial nerve
(**C7**, C8)
61
Extensor indicis - proximal origin
Distal 1/3 ulna
62
Extensor indicis - distal insertion
2nd finger (index finger)
63
Extensor indicis - action
Extension of index finger
64
Extensor indicis - innervation
Posterior interosseous nerve – deep radial nerve
(C7, **C8**)
65
Abductor pollicis longus - proximal origin
Proximal halves of ulna, radius
66
Abductor pollicis longus - distal insertion
base of 1st metacarpal
67
Abductor pollicis longus - action
Extension of wrist joint
Abduction and extension of thumb
68
Abductor pollicis longus - innervation
Posterior interosseous nerve – deep radial nerve
(C7, **C8**)
69
Extensor pollicis brevis - proximal origin
Distal 1/3 radius
70
Extensor pollicis brevis - distal insertion
base of proximal phalanx of thumb
71
Extensor pollicis brevis - action
Extension of wrist joint
Extension of proximal thumb at MTP
72
Extensor pollicis brevis - innervation
Posterior interosseous nerve – deep radial nerve
(C7, **C8**)
73
Extensor pollicis longus - proximal origin
Middle 1/3 radius
74
Extensor pollicis longus - distal insertion
base of distal phalanx of thumb
75
Extensor pollicis longus - action
Extension of wrist joint
Extension of distal phalanx of thumb at ITP
76
Extensor pollicis longus - innervation
Posterior interosseous nerve – deep radial nerve
(C7, **C8**)
77
Opponens pollicis - proximal origin
Flexor retinaculum, scaphoid, trapezium
78
Opponens pollicis - distal insertion
lat. side 1st metacarpal
79
Opponens pollicis - action
Oppose the thumb
80
Opponens pollicis - innervation
Median nerve
81
Abductor pollicis brevis - proximal origin
Flexor retinaculum, scaphoid, trapezium
82
Abductor pollicis brevis - distal insertion
lat. side base of proximal phalanx of thumb
83
Abductor pollicis brevis - action
abduct the thumb
84
Abductor pollicis brevis - innervation
median nerve
85
Flexor pollicis brevis - proximal origin
Flexor retinaculum, scaphoid, trapezium
86
Flexor pollicis brevis - distal insertion
lat. side base of proximal phalanx of thumb
87
Flexor pollicis brevis - action
flex thumb
88
Flexor pollicis brevis - innervation
Superficial head – median nerve
Deep head - ulnar nerve
89
Abductor digiti minimi - proximal origin
Pisiform
90
Abductor digiti minimi - distal insertion
med. side base of prox. Phalanx 5th finger
91
Abductor digiti minimi - action
abducts 5th finger
92
Abductor digiti minimi - innervation
Ulnar nerve
| (C8, T1)
93
Flexor digiti minimi brevis - proximal origin
Hook of hamate
94
Flexor digiti minimi brevis - distal insertion
med. side base of prox. Phalanx 5th finger
95
Flexor digiti minimi brevis - action
Flexes proximal phalanx of 5th finger
96
Flexor digiti minimi brevis - innervation
Ulnar nerve
| (C8, T1)
97
Opponens digiti minimi - proximal origin
Hook of hamate
98
Opponens digiti minimi - distal insertion
med. border of 5th metacarpal
99
Opponens digiti minimi - action
Oppose the 5th finger to the thumb
100
Opponens digiti minimi - innervation
Ulnar nerve
| (C8, T1)
101
Lateral lumbricals - proximal origin
Lat. two tendons of FDP
102
Lateral lumbricals - distal insertion
lat. extensor expansions digits
103
Lateral lumbricals - action
Flex fingers at MCPJ and extend at ITP 2nd – 5th digits
104
Lateral lumbricals - innervation
median nerve
105
Medial lumbricals - proximal origin
Med. three tendons of FDP
106
Medial lumbricals - distal insertion
lat. extensor expansions
107
Medial lumbricals - innervation
Ulnar nerve
108
Adductor pollicis - proximal origin
Bases of 2nd/3rd metacarpals
109
Adductor pollicis - distal insertion
med. side base of proximal phalanx of thumb
110
Adductor pollicis - action
adduction of thumb
111
Adductor pollicis - innervation
ulnar nerve
112
dorsal interossei - proximal origin
Adjacent sides of metacarpals
113
dorsal interossei - distal insertion
base of proximal phalanges
114
dorsal interossei - action
DAB – abduction
115
dorsal interossei - innervation
Ulnar nerve
| (C8, T1)
116
palmar interossei - proximal origin
Palmar surface of 2-5th metacarpals
117
palmar interossei - distal insertion
bases of proximal phalanges
118
palmar interossei - action
PAD – adduction
119
palmar interossei - innervation
Ulnar nerve
| (C8, T1)
