1Pronator Teres origin
Humeral head - medial epicondyle of humerus
Ulnar head - Coronoid process of ulna
2Pronator Teres insertion
middle of lateral radius
3Pronator Teres action
pronation of forearm
flexion of elbow
4Pronator Teres nerve supply
median nerve
5Flexor carpi Ulnaris origin
humeral head: medial epicondyle of humerus
ulnar head: olecranon process and proximal posterior ulna
6Flexor carpi Ulnaris insertion
pisiform
hook of hamate
base of 5th metacarpal
7Flexor carpi Ulnaris action
flexion of wrist
ulnar deviation of wrist
8Flexor carpi Ulnaris nerve supply
ulnar nerve
9Palmaris Longus origin
medial epicondyle of humerus
10Palmaris Longus insertion
palmar aponeurosis
flexor retinaculum
bases of proximal phalanges
11Palmaris Longus action
flexion of wrist
12Palmaris Longus nerve supply
median nerve
13Flexor carpi radialis origin
medial epicondyle of humerus
14Flexor carpi radialis insertion
base of 2nd and 3rd metacarpals
15Flexor carpi radialis action
flexion of wrist
radial deviation of wrist
16Flexor carpi radialis nerve supply
median nerve
17Flexor digitorum superficialis origin
medial epicondyle of humerus
coronoid process of ulna
proximal anterior surface of radius
18Flexor digitorum superficialis insertion
middle phalanger of digits 2-5
19Flexor digitorum superficialis action
flexion of wrist
flexion of digits 2-5 at MCP and PIP joints
20Flexor digitorum superficialis nerve supply
median nerve
21Pronator Quadratus origin
distal anteromedial ulna
22Pronator Quadratus insertion
distal anterolateral radius
23Pronator Quadratus action
pronation of forearm
24Pronator Quadratus nerve supply
median nerve
25Flexor Pollicis Longus origin
anterior surface of radius
interosseus membrane
26Flexor Pollicis Longus insertion
base of distal phalanx of digit 1
27Flexor Pollicis Longus action
flexion of thumb at IP joint
28Flexor Pollicis Longus nerve supply
median nerve
29Flexor Digitorum Profundus origin
proximal surface of ulna
30Flexor Digitorum Profundus insertion
base of distal phalanges of digits 2-5
31Flexor Digitorum Profundus action
Flexion of wrist
Flexion of digits 2-5 at MCP, PIP and DIP joints
32Flexor Digitorum Profundus nerve supply
Digits 2-3: median nerve
Digits 4-5: ulnar nerve
33Extensor Carpi Radialis Longus origin
Lateral supracondylar ridge
Lateral epicondyle of humerus
34Extensor Carpi Radialis Longus insertion
Base of 2nd metacarpal
35Extensor Carpi Radialis Longus action
Extension of wrist
Radial deviation of wrist
36Extensor Carpi Radialis Longus nerve supply
Radial nerve
37Extensor Carpi Radialis Brevis origin
Lateral epicondyle of humerus
38Extensor Carpi Radialis Brevis insertion
Base of 3rd metacarpal
39Extensor Carpi Radialis Brevis action
Extension of wrist
40Extensor Carpi Radialis Brevis nerve supply
Deep branch of radial nerve
41Extensor Digitorum origin
Lateral epicondyle of humerus
42Extensor Digitorum insertion
Extensor expansion of digits 2-5
43Extensor Digitorum action
Extension of wrist
Extension of digits 2-5 at MCP joints
44Extensor Digitorum nerve supply
Deep branch of radial nerve
45Extensor Digiti Minimi origin
Lateral epicondyle of humerus
46Extensor Digiti Minimi insertion
- Extensor expansion of digit 5
47Extensor Digiti Minimi action
Extension of wrist
Extension of digit 5 at MCP joint
48Extensor Digiti Minimi nerve supply
Deep branch of radial nerve
49Extensor Carpi Ulnaris origin
Humeral Head – Lateral epicondyle of humerus
Ulnar Head – Proximal posterior ulna
50Extensor Carpi Ulnaris insertion
Base of 5th metacarpal
51Extensor Carpi Ulnaris action
Extension of wrist
Ulnar deviation of wrist
52Extensor Carpi Ulnaris nerve supply
Deep branch of radial nerve
53Supinator origin
- Lateral epicondyle of humerus
- Annular and radial collateral ligaments
- Supinator crest of ulna
54Supinator insertion
- Lateral surface of proximal radius
55Supinator action
- Supination of forearm
56Supinator nerve supply
- Deep branch of radial nerve
57Extensor Indicis origin
- Posterior ulna
- Adjacent interosseous membrane
58Extensor Indicis insertion
Extensor expansion of digit 2
59Extensor Indicis action
Extension of wrist
Extension of digit 2 at MCP joint
60Extensor Indicis nerve supply
- Deep branch of radial nerve
61Abductor Pollicis Longus origin
- Posterior surfaces of radius and ulna
- Interosseous membrane
62Abductor Pollicis Longus insertion
Base of 1st metacarpal
63Abductor Pollicis Longus action
Radial deviation of wrist
Abduction of thumb at CMC joint
64Abductor Pollicis Longus nerve supply
Deep branch of radial nerve
65Extensor Pollicis Brevis origin
posterior radius
interosseous membrane
66Extensor Pollicis Brevis insertion
base of proximal phalanx of digit 1
67Extensor Pollicis Brevis action
- Radial deviation of wrist
- Extension of thumb at MCP joint
68Extensor Pollicis Brevis nerve supply
deep branch of radial nerve
69Extensor Pollicis Longus origin
Middle posterior ulna and interosseous membrane
70Extensor Pollicis Longus insertion
Base of distal phalanx of digit 1
71Extensor Pollicis Longus action
- Radial deviation of wrist
- Extension of thumb at IP joint
72Extensor Pollicis Longus nerve supply
- Deep branch of radial nerve
73Abductor Pollicis Brevis origin
Flexor retinaculum
Trapezium
Scaphoid
74Abductor Pollicis Brevis insertion
- Base of proximal phalanx of digit 1
75Abductor Pollicis Brevis action
Abduction of thumb at CMC Joint
76Abductor Pollicis Brevis nerve supply
Median nerve
77Flexor Pollicis Brevis origin
Superficial head – flexor retinaculum and trapezium
Deep head – trapezium and capitate
78Flexor Pollicis Brevis insertion
- Base of proximal phalanx of digit 1
79Flexor Pollicis Brevis action
- Flexion of thumb at MCP joint
80Flexor Pollicis Brevis nerve supply
- Superficial head – median nerve
- Deep head – ulnar nerve
81Opponens Pollicis origin
- Flexor retinaculum
- Trapezium
82Opponens Pollicis insertion
- Radial shaft of 1st metacarpal
83Opponens Pollicis action
Opposition of thumb at CMC joint
84Opponens Pollicis nerve supply
- Median nerve
85Adductor Pollicis origin
- Transverse head – anterior surface of 3rd metacarpal
- Oblique head – bases of 2nd and 3rd metacarpals;
capitate, trapezoid and trapezium
86Adductor Pollicis insertion
- Base of proximal phalanx of digit 1
87Adductor Pollicis action
- Adduction of thumb at CMC joint
88Adductor Pollicis nerve supply
- Ulnar nerve
89Abductor Digit Minimi origin
- Pisiform
90Abductor Digit Minimi insertion
- Base of proximal phalanx of digit 5
91Abductor Digit Minimi action
- Abduction of digit 5 at MCP joint
92Abductor Digit Minimi nerve supply
- Ulnar nerve
93Flexor Digit Minimi origin
- Flexor retinaculum
- Hook of hamate
94Flexor Digit Minimi insertion
- Base of proximal phalanx of digit 5
95Flexor Digit Minimi action
- Flexion of digit 5 at MCP joint
96Flexor Digit Minimi nerve supply
- Ulnar nerve
97Opponens Digiti Minimi origin
- Flexor retinaculum
- Hook of hamate
98Opponens Digiti Minimi insertion
- Ulnar border of 5th metacarpal
99Opponens Digiti Minimi action
- Opposition of digit 5 at CMC joint
100Opponens Digiti Minimi nerve supply
- Ulnar nerve
101Lumbricals origin
- Flexor digitorum profundus tendons
102Lumbricals insertion
- Radial side of extensor expansion of digits 2-5
103Lumbricals action
- Flexion of digits 2-5 at MCP joints
- Extension of digits 2-5 at PIP and DIP joints
104Lumbricals nerve supply
- Digits 2-3: median nerve
- Digits 4-5: ulnar nerve
105Dorsal Interossei origin
- Posterior surfaces of adjacent metacarpals
106Dorsal Interossei insertion
- Bases of proximal phalanges and extensor expansions of
digits 2-4
- Radial (lateral) sides of digits 2-3
- Ulnar (medial) sides of digits 3-4
107Dorsal Interossei action
- Abduction of digits 2-4 at MCP joints
- Flexion of digits 2-4 at MCP joints
- Extension of digits 2-4 at PIP and DIP joints
108Dorsal Interossei nerve supply
- Ulnar nerve
109Palmar Interossei origin
- Palmar surfaces of 2nd, 4th, and 5thmetacarpals
110Palmar Interossei insertion
- Bases of proximal phalanges and extensor expansions
of digits 2, 4, and 5
- Ulnar (medial) side of digit 2
- Radial (lateral) side of digits 4-5
111Palmar Interossei action
- Adduction of digits 2, 4 and 5 at MCP joints
- Flexion of digits 2, 4 and 5 at MCP joints
- Extension of digits 2, 4 and 5 at PIP and DIP joints
112Palmar Interossei nerve supply
- Ulnar nerve