- May 6, 2026The ECRB is the most clinically important of the wrist extensors — it produces pure wrist extension without radial or…
- May 6, 2026FPL is the only flexor of the thumb interphalangeal joint. Its AIN innervation makes it the muscle most commonly tested…
- May 6, 2026The FCR runs in its own compartment at the wrist — a fibro-osseous tunnel between the scaphoid and trapezium. This…
- May 6, 2026The ulnar head arises from the coronoid and forms the deep boundary of the inter-head interval through which the median…
- May 6, 2026Palmaris longus is absent in 14% of individuals. It has the longest tendon of any forearm muscle relative to its…
- May 6, 2026The FCU is the only wrist flexor innervated by the ulnar nerve. The ulnar nerve passes between its humeral and…
- May 6, 2026FDP is the only flexor of the DIP joint and is uniquely innervated by two different nerves — the AIN…
- May 6, 2026EPL is the only extensor of the thumb IP joint and forms the medial border of the anatomical snuffbox. Its…
- May 6, 2026The supinator wraps around the proximal radius and the posterior interosseous nerve pierces through it under the Arcade of Frohse…
- May 6, 2026ECU runs in its own sixth extensor compartment and plays a critical role in DRUJ stability by providing dorsal support.…