Extensor pollicis longus
Extensor pollicis longus is a skeletal muscle that originates at ulna Inserts to thumb, distal phalanx, and is supplied by (artery, and nerve), and its actions include:posterior interosseous nerve (C7, C8) extension of the thumb (metacarpophalangeal and interphalangeal)
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Contributors: Prab R. Tumpati, MD
