abductor pollicis longus origin

What is Abductor pollicis longus muscle? The muscle known as the abductor pollicis longus can be found in the forearm’s posterior compartment. Along with the supinator, extensor pollicis brevis, extensor pollicis longus, and extensor indicis, it is one of the forearm’s five deep extensors. All of the deep extensor muscles, except for the supinator, cross…