- May 2, 2026The FDP tendons enter the fibro-osseous flexor sheaths alongside the FDS tendons, passing through the Camper chiasm (the splitting of…
- May 2, 2026The EDC tendons share a muscle belly for the middle, ring, and little fingers, with interconnections (juncturae tendinum) that prevent…
- May 2, 2026The lateral bands are the intrinsic contribution to the extensor mechanism, running dorsolateral to the PIP joint before reuniting to…
- May 2, 2026The nail apparatus includes the germinal matrix (proximal, produces the nail plate), sterile matrix (distal, adheres to the nail plate),…
- May 2, 2026The interosseous muscle tendons insert on both the proximal phalanx base (producing MCP flexion and deviation) and the lateral bands…
- May 2, 2026The EIP provides independent index finger extension (allowing the index finger to point while the other fingers are fisted) and…
- May 2, 2026The EIP tendon runs alongside the EDC in the fourth compartment and inserts ulnar to the EDC index tendon on…
- May 2, 2026The ECU tendon sheath and its subsheath within the sixth extensor compartment constrains the ECU tendon in the groove between…
- May 2, 2026The FCR tendon passes through a narrow fibro-osseous tunnel within the groove of the trapezium bone before inserting on the…
- May 2, 2026The FPL has its own separate sheath within the carpal tunnel (the radial bursa) that is distinct from the ulnar…