In human anatomy, the extensor pollicis brevis (EPB) is a skeletal muscle on the dorsal side of the forearm. It lies on the medial side of, and is closely connected with, the abductor pollicis longus.

Nov 3, 2023 · The main action of this muscle is to extend the thumb on the carpometacarpal and metacarpophalangeal joints, together with its long counterpart, extensor pollicis longus …

The extensor pollicis brevis (EPB) belongs to the deep group of the posterior fascial compartment of the forearm. [1] It is a part of the lateral border of the anatomical snuffbox.

May 6, 2024 · The extensor pollicis brevis (EPB) is a slender, flat muscle in the deep posterior compartment of the forearm. Relatively short for a forearm muscle, it is one of the three …

The extensor pollicis brevis muscle is one of the muscles of the deep part of the posterior compartment of the forearm. It is a short, fusiform type of skeletal muscle.

Oct 5, 2022 · The extensor pollicis brevis is a muscle within the deep compartment of the posterior forearm. The tendon of the extensor pollicis brevis passes through the 1st extensor …

May 12, 2025 · The extensor pollicis brevis (EPB) is one of the deep muscles of the posterior compartment of the forearm. It acts to extend the thumb at the metacarpophalangeal and …

Sep 10, 2024 · The extensor pollicis brevis muscle originates from the lower third of the posterior surface of the radius and the interosseous membrane. It inserts on the base of the proximal …

The extensor pollicis brevis (Latin: musculus extensor pollicis brevis) is a flat, thin and relatively short muscle of the forearm that extends between the radius and the proximal phalanx of the …

The extensor pollicis brevis (EPB) muscle is a relatively small yet crucial muscle located in the forearm. It plays a significant role in controlling the movement of the thumb, enabling various …