American Society of Hand Therapists (ASHT)

Also called extrinsic muscles of the hand. Lie entirely within forearm. Only tendons cross wrist (in synovial tendon sheaths) Tendon sheaths. Extensor retinaculum . Wide band of connective tissue. Posterior surface of wrist. Stabilizes tendons of extensor muscles . Flexor retinaculum: Anterior surface of wrist. Stabilizes tendons of flexor muscles ................
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