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11 Cards in this Set

  • Front
  • Back
Brachioradialis
O: lateral supracondylar ridge of humerus
I: styloid process of radius
N: radial
A: flexion of elbow in the neutral position
Extensor Carpi Radialis Longus
O: lateral supracondylar ridge of the humerus
Common extensor tendon on the lateral epicondyle of the humerus
I: base of the 2nd metacarpal
N: radial
A: extension and abduction of the wrist
Extensor Carpi Radialis Brevis
O: common extensor tendon on the lateral epicondyle of the humerus
I: base of the 3rd metacarpal
N: radial – deep branch
A: extension of the wrist
Extensor Digitorum
O: common extensor tendon on the lateral epicondyle of the humerus
I: extensor expansion to digits II-V
N: radial – posterior interosseous branch
A: extension of phalanges at the metacarpophalangeal joints
Extensor Digiti Minimi
(Detached slip of the extensor digitorum)
O: common extensor tendon on the lateral epicondyle of the humerus
I: extension expansion to digit V
N: radial – posterior interosseous branch
A: extension of the 5th finger
Extensor Carpi Ulnaris
O: common extensor tendon on the lateral epicondyle of the humerus
Dorsal border of the ulna
I: base of the 5th metacarpal
N: radial – posterior interosseous branch
A: extension and adduction of the wrist
Supinator
O: lateral epicondyle of the humerus
Radial collateral and annular ligaments and supinator crest
I: dorsal-lateral surface of the proximal 1/3 of shaft of the radius
N: radial – deep branch
A: supination of forearm
Abductor Pollicis Longus
O: Dorsal surface of the shafts of the ulna and radius and the interosseous membrane
I: radial side – base of the 1st metacarpal
N: radial – posterior interosseous branch
A: abduct thumb at the carpometacarpal joint and extension of thumb (CMC joint)
Extensor Pollicis Brevis
O: body of the radius on the dorsal surface and the interosseous membrane
I: base of the proximal phalanx of the thumb
N: radial – posterior interosseous branch
A: extension of the 1st phalanx of the thumb
Extensor Pollicis Longus
O: dorsal surface of the shaft of the ulna and the interosseous membrane
I: base of the distal phalanx of the thumb on the dorsal surface
N: radial – posterior interosseous branch
A: extension of the distal phalanx of the thumb, and (by continued action) abduction of hand
Extensor Indicis
O: dorsal surface of the shaft of the ulna and the interosseous membrane
I: ulnar side of the extensor expansion to the index finger at the level of the base of the 2nd
metacarpal, proximal phalanx
N: radial – posterior interosseous branch
A: extension of the index finger