Difference between revisions of "DEEP POSTERIOR COMPARTMENT OF FOREARM-EPB"
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<br/><b><i>TIP: EPL, EI, SUPINATOR arise from the ulna, the rest arise from either the radius or both radius and ulna</i></b> | <br/><b><i>TIP: EPL, EI, SUPINATOR arise from the ulna, the rest arise from either the radius or both radius and ulna</i></b> | ||
<br/> | <br/> | ||
<br/>1. O: posterior surface of radius & interosseous membrane. | <br/>1. O: posterior surface of radius & interosseous membrane. | ||
<br/>2. I: dorsal base of proximal phalanx of the thumb. | <br/>2. I: dorsal base of proximal phalanx of the thumb. | ||
<br/>3. NS: posterior interosseous branch of radial n. | <br/>3. NS: posterior interosseous branch of radial n. | ||
<br/>4. A: extends the proximal phalanx of the thumb at the CMCJ. | <br/>4. A: extends the proximal phalanx of the thumb at the CMCJ. | ||
<br/>[[Image:paste-5398773892079.jpg]] | <br/>[[Image:paste-5398773892079.jpg]] | ||
<br/>Image: | <br/>Image: Extensor ppollicis brevis muscle. Netter. (2014). Atlas of Human Anatomy, Sixth Edition. 6th ed. Elsevier. | ||
Revision as of 11:29, 1 January 2023
SUMMARY
EXTENSOR POLLICIS BREVIS
TIP: EPL, EI, SUPINATOR arise from the ulna, the rest arise from either the radius or both radius and ulna
1. O: posterior surface of radius & interosseous membrane.
2. I: dorsal base of proximal phalanx of the thumb.
3. NS: posterior interosseous branch of radial n.
4. A: extends the proximal phalanx of the thumb at the CMCJ.
Image: Extensor ppollicis brevis muscle. Netter. (2014). Atlas of Human Anatomy, Sixth Edition. 6th ed. Elsevier.
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.
