This ligament should not be confused with the flexor retinaculum, which is located deeper to the transverse palmar ligament. Continuous with the extensor retinaculum from the dorsal side of the wrist and wraps around, anteriorly, to form a fascial band around the flexor tendons. Laterally, the flexor retinaculum is anchored to the scaphoid and trapezium. The flexor retinaculum anchors medially to the pisiform and the hook of the hamate. The median nerve and the tendons of the flexor digitorum superficialis, flexor digitorum profundus, and flexor pollicis longus muscles, and their associated synovial sheaths, pass through this tunnel. Forms a roof over the concavity created by the carpal bones, forming a tunnel (i.e., the carpal tunnel).
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