Flexor retinaculum
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description and en/de-translation-table see File:Carpal-Tunnel.svg
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palmell de la mà dreta amb la disposició de músculs i beines, destacant les eminències tènar i hipotènar
The flexor retinaculum (also known as the transverse carpal ligament) is a rectangular-shaped fibrous band located at the ventral aspect of the wrist.
Gross anatomy
The flexor retinaculum encloses and forms the roof of the carpal tunnel. The ulna aspect of the flexor retinaculum forms the floor of Guyon's canal.
It has superficial and deep layers, which are separate on the radial aspect, containing the tendon of flexor carpi radialis.
Attachments
- proximal: deep fascia of the forearm
- distal: palmar aponeurosis
- radial: scaphoid tubercle and ridge of the trapezium
- ulnar: pisiform and hook of the hamate
Relations
- deep: contents of the carpal tunnel
- superficial
- ulnar artery and nerve (in Guyon's canal)
- palmar cutaneous branch of the median and ulnar nerves
- palmaris longus tendon
- superficial palmar branch of the radial artery
- origins of thenar and hypothenar muscles
- between superficial and deep layers: flexor carpi radialis
Variant anatomy
- radial aspect of the flexor retinaculum may be pierced by the median nerve
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Ligamentum carpi transversum: 