Origin
Ulna
Insertion
Inserts into the distal phalanx of the thumb.
Blood supply
Posterior interosseous artery.
Nerve supply
Posterior interosseous nerve.
Action
The muscle helps to extend the wrist as well as the thumb during activities like gripping and grasping.
Disease/Injury
The extensor pollicis longus is prone to developing tendinitis as a result of overuse.
Muscle Exercise
By performing the barbell reverse wrist curls with your forearms resting on a bench, you can increase the strength of your extensor pollicis longus.
Interesting Facts
NA
