1. Superficial Muscles, Tendons, Nerves, and Vessels of the Posterior Forearm and Dorsum of Hand
Margene Fallon

2. Superficial Muscle Group
3 Lateral Muscles
Brachioradialis (Flexes elbow)
Extensor carpi radialis longus (extends wrist; aids in radial flexion of wrist)
O: lateral supracondylar ridge of humerus
I: metacarpal II
N: Radial nerve
Extensor carpi radialis brevis (extends wrist; aids in radial flexion of wrist)
O: Lateral epicondyle of humerus
I: metacarpal III
N: Posterior interosseous nerve

3. Superficial Muscle Group
4 Posterior Muscles
Originate at Lateral epicondyle of humerus
Anconeus (Extends elbow)
I: Olecranon & posterior surface of ulna
N: radial nerve
Extensor digitorum
I: Dorsal surfaces of phalanges 2-5
N: posterior interosseous nerve
Extensor digiti minimi
I: proximal phalanx 5
N: Posterior interosseous nerve
Extensor carpi ulnaris
I: base of metacarpal 5

4. Watch Out Do not sever: Posterior antebrachial cutaneous nerve
Extensor retinaculum