the extensor pollicis longus tendon is located dorsally on the forearm.
the extensor pollicis longus tendon is located dorsally on the forearm.
where is the extensor pollicis longus tendon located?
dorsally on the forearm
extensor pollicis longus muscle









































in human anatomy, the extensor pollicis longus muscle (epl) is a skeletal muscle located dorsally on the forearm. it is much larger than the extensor pollicis brevis, the origin of which it partly covers and acts to stretch the thumb together with this muscle.









































section::::structure.









































the extensor pollicis longus arises from the dorsal surface of the ulna and from the interosseous membrane, next to the origins of abductor pollicis longus and extensor pollicis brevis.
extensor pollicis longus muscle
extensor pollicis longus extends the terminal phalanx of the thumb. while abductor pollicis brevis and adductor pollicis, both attached to the extensor pollicis longus tendon, can extend the thumb's interphalangeal joint to the neutral position, only extensor pollicis longus can achieve full hyperextension at the interphalangeal joint. this complete extension at the interphalangeal joint is not possible, or considerably more difficult, with the carpal, carpometacarpal, and metacarpophalangeal joints simultaneously extended. likewise, flexion at the interphalangeal joint by flexor pollicis longus is considerably reduced in wrist flexion.
extensor pollicis longus muscle