Extensors of the forearm

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Author:
berrybella.ar
ID:
86861
Filename:
Extensors of the forearm
Updated:
2011-05-20 01:15:25
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Extensors forearm
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Massage Therapy
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  1. Extensor Carpi Radialis Longus and Brevis: Name the action, origin, insertion
    • A: Extend and abduct the wrist (radiocarpal joint)
    • O: Longus: Distal one-third of the lateral supracondylar ridge of humerus
    • Brevis: Common extensor tendon from the lateral epicondyle of humerus
    • I: Longus: Base of 2nd metacarpal
    • Brevis: Base of third metacarpal
  2. Extensor Carpi Ulnaris: Name action, origin, insertion
    • A: Extend and adduct the wrist
    • O: Common extensor tendon from the lateral epicondyle of humerus
    • I: Base of 5th metacarpal
  3. Extensor Digitorum: Name action, origin, insertion
    • A: Extend the 2nd-5th fingers
    • O: common extensor tendon from the lateral epicondyle of humerus
    • I: Bases of middle and distal phalanges of 2nd-5th fingers
  4. Extensor Pollicis Longus and Brevis: Name action, origin, insertion
    • A: Extend the thumb
    • O: Longus: Posterior surface of ulna and interosseus membrane
    • Brevis: (short) Posterior surface of radius and interosseous membrane
    • I: Longus: Base of distal phalanx of thumb
    • Brevis: Base of proximal phalanx of thumb

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