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 …

Oct 30, 2023 · Extensor pollicis longus is one of the deep forearm extensors that controls the movements of the thumb. Learn its anatomy and function at Kenhub!

The extensor pollicis longus innervated by a motor branch of the posterior interosseous nerve, which belongs to the deep group of branches from the posterior interosseous nerve.

The primary functions of the extensor pollicis longus are to extend the interphalangeal and metacarpophalangeal joints of the thumb. Additionally, it assists in thumb retropulsion and abduction …

Discover the extensor pollicis longus muscle: its origin, insertion, key features, actions, and clinical correlates.

May 6, 2024 · With its tendon crossing the distal radioulnar joint (wrist), the extensor pollicis longus help extend and abduct the wrist along with the other thumb extensors. It also assists in supinating the …

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Dec 21, 2022 · Patients have an extra muscle named the extensor pollicis and indicis communis, which originates on the ulna between the extensor pollicis longus and extensor indicis.

May 12, 2025 · The extensor pollicis longus (EPL) is a deep extensor muscle of the posterior forearm. It is responsible for extending the thumb at the interphalangeal, metacarpophalangeal, and …

• Extends the thumb at interphalangeal joint. • Extrinsic extensor muscle. • Located in the third extensor/dorsal compartment.