Flexor retinaculum

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The tendon sheaths and flexor tendons of the wrist in humans. The course of the median nerve under the flexor retinaculum is not shown.

The flexor retinaculum (from latin retinaculum , band ' , reins' and flexor , flexor' ) is a hand or foot surface side ( volar ) in the amount of hand or tarsal transverse, massive band. The flexor retinaculum is anatomically not an independent ligament, but a reinforcement of the fascia .

The retinaculum is found on the hand and foot . In veterinary anatomy, flexor tendon straps outside the wrist are also known as the flexor retinaculum .

By the hand

The tape is applied to the hand as a ligament transverse carpal (from Latin ligament , band ' , binding', transverse , cross ' and ancient Greek Καρπός karpos , German , carpal ' ) or carpal ligament referred to - the flexor retinaculum is the roof of the carpal tunnel is and holds the tendons of the flexor muscles ( flexor tendons ) close to the wrist even with the hand flexed. To do this, it forms six compartments for the muscle tendons. The median nerve also runs through one of the middle ones . In the surgical treatment of carpal tunnel syndrome , the flexor retinaculum is severed in order to counteract compression of this nerve in the tendon compartment.

Its counterpart for guiding the extensor muscles on the back of the hand (dorsal) is the extensor retinaculum .

At the foot

On the foot, the complete Latin name is retinaculum musculorum flexorum pedis or ligamentum laciniatum (distal part). It delimits the tarsal tunnel on or under the medial malleolus .