The extensor carpi ulnaris (ECU) plays a pivotal role in wrist and forearm function, contributing to both extension and adduction of the hand at the wrist, while also providing essential medial stability.

Nov 3, 2023 · Extensor carpi ulnaris is the most medial muscle of the posterior forearm. At its superior attachment, the originating fibers of extensor carpi ulnaris form the most medial part of the common …

In human anatomy, the extensor carpi ulnaris is a skeletal muscle located on the ulnar side of the forearm. The extensor carpi ulnaris acts to extend and adduct at the carpus /wrist from anatomical …

Feb 4, 2024 · The ECU tendon is essential in stabilising the outside or ulnar aspect of the wrist. It can be injured in active individuals or athletes, causing ECU tendonitis, tear, and snapping.

The extensor carpi ulnaris (ECU) tendon plays an important role in the movement and stability of the wrist. Located on the ulnar side of the wrist, this tendon is responsible for extension and ulnar deviation.

The extensor carpi ulnaris (ECU) originates from the lateral epicondyle of the humerus and the posterior ulna, travels through the sixth dorsal compartment, and inserts on the medial side of the fifth …

Extensor carpi ulnaris tendinitis is characterized by pain on the side of the wrist by the little finger due to inflammation of a tendon sheath (lining) or strain of a tendon to the wrist, the extensor carpi ulnaris …

Sep 17, 2025 · Extensor carpi ulnaris (ECU) tendinopathy is varied and includes tendinosis, (stenosing) tenosynovitis, tendon instability, and (rarely) rupture.

Apr 6, 2024 · Learn its anatomy, tendon attachments, nerve, blood supply, & functions.

The ECU is the only wrist extensor that lies within its own fibro-osseous tunnel. The ECU Tendon passes through a groove on the ulnar side of the distal ulna which is covered by an annular ligament.