Body Region: Hand & Wrist

  • April 28, 2026
    The lumbrical tendons arise from the FDP tendons in the palm and insert into the radial lateral bands of the…
  • April 28, 2026
    The interosseous muscle tendons insert on both the proximal phalanx base (producing MCP flexion and deviation) and the lateral bands…
  • April 28, 2026
    The EIP provides independent index finger extension (allowing the index finger to point while the other fingers are fisted) and…
  • April 28, 2026
    The five annular (A1-A5) and three cruciate pulleys of each finger form the fibro-osseous flexor tendon sheath. The A2 pulley…
  • April 28, 2026
    The six extensor compartments at the dorsal wrist contain: (1) APL and EPB, (2) ECRL and ECRB, (3) EPL around…
  • April 28, 2026
    The ECU tendon runs in its own fibro-osseous groove on the dorsal distal ulna within the sixth extensor compartment, stabilised…
  • April 28, 2026
    The FDP tendons pass through the carpal tunnel deep to the FDS tendons, then split through the Camper chiasm in…
  • April 28, 2026
    The FDS tendons lie superficial to the FDP tendons in the carpal tunnel and in the finger flexor sheaths. At…
  • April 28, 2026
    The opponens pollicis tendon inserts along the entire radial first metacarpal border, allowing it to rotate, flex, and abduct the…
  • April 28, 2026
    The FDS tendons split into two slips at each finger A1 pulley to pass around and insert on the middle…

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