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DEEP POSTERIOR COMPARTMENT OF FOREARM-EPL

Anatomy-Upper Limb

DEEP POSTERIOR COMPARTMENT OF FOREARM-EPL

EXTENSOR POLLICIS LONGUS
TIP: EPL, EI, SUPINATOR arise from the ulna

1. O: posterior surface of the middle third of the ulna + interosseous membrane.
2. I: dorsal base of terminal phalanx of the thumb.
3. NS: posterior interosseous division of the radial n.
4. A: extends the distal phalanx of the thumb at the IPJ + CMCJ.


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REFERENCES

1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: Extensor ppollicis longus muscle. Netter. (2014). Atlas of Human Anatomy, Sixth Edition. 6th ed. Elsevier.

Ⓒ A. Manickam 2018

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