Anatomy of the flexor retinaculum of the wrist and the flexor carpi radialis tunnel.
The flexor retinaculum forms a retinacular bridge over the carpal tunnel extending from ulnar to radial direction. Its main function is to protect the contained without a significant mechanical action in supporting the transverse carpal arch. The osteofibrous tunnel of flexor carpi radialis is independent and presents four sections. The palmaris longus tendon presents a distal insertion forming the superficial layer of the aponeurosis palmaris. The flexor carpi ulnaris tendon has four distal insertions.
Department of Anatomy, University of Buenos Aires, Buenos Aires, Argentina. roque@cronosku.com.ar
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D006801:Humans; D013710:Tendons / Q000033:anatomy & histology*; D014955:Wrist Joint / Q000033:anatomy & histology*