Updated: 10/19/2017

Extensor Pollicis Longus

Review Topic

Origin Posterior surface of middle 1/3 of ulna and interosseous membranee
Insertion Base of distal phalanx of thumb
Action Extends distal phalanx of thumb at carpometacarpal and interphalangeal joints
Innervation Posterior interosseous nerve (C7 and C8), the continuation of the deep branch of the radial nerve (C7, C8)
Arterial Supply Posterior interosseous artery



Please rate topic.

Average 3.0 of 1 Ratings

Thank you for rating! Please vote below and help us build the most advanced adaptive learning platform in medicine

The complexity of this topic is appropriate for?
How important is this topic for board examinations?
How important is this topic for clinical practice?
Topic COMMENTS (9)
Private Note