Extensors of forearm

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Extensor digitorum (A)

Assist to extend the wrist Extend 2-5 fingers

Extensor carpi radialis longus (I)

Base of the 2nd metacarpal

Extensor digitorum (I)

Bases of middle and distal phalanges of 2-5 fingers

Extensor indicis (A)

assist to extend the wrist extend the 2nd (index) finger adduct the 2nd finger

Extensor carpi radialis brevis (I)

base of 3rd metacarpal

Extensor carpi ulnaris (I)

base of 5th metacarpal

Extensor digiti minimi (I)

base of distal phalanx of 5th finger

Extensor carpi ulnaris (O)

common extensor tendon from the later epicondyle of humerus

Extensor carpi radialis brevis (O)

common extensor tendon from the lateral epicondyle of humerus

Extensor digitorum (O)

common extensor tendon from the lateral epicondyle of humerus

Extensor carpi radialis longus (O)

distal 1/3 of lateral supracondylar ridge of humerus

Extensor digiti minimi (A)

extend all three joints of 5th finger (pinky)

Extensor carpi radialis brevis (A)

extend the wrist abduct the wrist assist to extend the elbow

Extensor carpi radialis longus (A)

extend the wrist abduct the wrist assist to flex the elbow

Extensor carpi ulnaris (A)

extend the wrist adduct the wrist

Extensor digiti minimi (O)

lateral epicondyle of humerus

Extensor carpi ulnaris (B)

posterior interosseous artery

Extensor digiti minimi (B)

posterior interosseous artery

Extensor digitorum (B)

posterior interosseous artery

Extensor indicis (B)

posterior interosseous artery

Extensor indicis (O)

posterior surface of distal shaft of ulna and interosseous membrane

Extensor carpi radialis brevis (N)

radial nerve

Extensor carpi radialis longus (N)

radial nerve

Extensor carpi ulnaris (N)

radial nerve

Extensor digiti minimi (N)

radial nerve

Extensor digitorum (N)

radial nerve

Extensor indicis (N)

radial nerve

Extensor carpi radialis brevis (B)

radial recurrent artery

Extensor carpi radialis longus (B)

radial recurrent artery

Extensor indicis (I)

tendon of the extensor digitorum at 2nd metacarpal


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