- April 28, 2026The FCR is the primary radial wrist flexor, inserting on the second metacarpal base. Its tendon passes through a fibro-osseous…
- April 28, 2026The ECRB is the primary wrist extensor active during gripping, running through the second extensor compartment to the third metacarpal…
- April 28, 2026The FDS is the superficial long finger flexor producing PIP joint flexion. It can be tested in isolation by holding…
- April 28, 2026The extensor indicis provides the independent index finger extension needed for pointing while the other digits are flexed. Its position…
- April 28, 2026The FPL is the only flexor of the thumb IP joint, providing the grip force for pinch. The anterior interosseous…
- April 28, 2026The FCR is the radial wrist flexor, running in its own fibro-osseous tunnel over the scaphoid and trapezium to insert…
- April 28, 2026The FCU is the ulnar wrist flexor and the most powerful wrist deviator toward the ulnar side, inserting primarily on…
- April 28, 2026The ECRL originates from the lateral supracondylar ridge (not the epicondyle) alongside the brachioradialis, making it one of the forearm…
- April 28, 2026The ECU is the ulnar wrist extensor, producing wrist extension combined with ulnar deviation. Its tendon runs in the sixth…
- April 28, 2026The extensor digitorum communis is the primary finger extensor, running through the fourth extensor compartment to the extensor expansions of…