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dorsal carpal tendinous sheaths


Definition: synovial tendon sheaths enabling tendon movement across the posterior aspect of the wrist deep to the extensor retinaculum; they are the following six tendinous sheaths (vaginae tendinum... [TA]): (1) of abductor longus and extensor pollicis brevis (muscles) [TA] (...musculorum abductoris longi et extensoris pollicis brevis [TA]); (2) of extensors carpi radiales (muscles) [TA] (...musculi extensorum carpi radialium [TA]); (3) of extensor pollicis longus (muscle) [TA] (...musculi extensoris pollicis longi [TA]); (4) of extensor digitorum and extensor indicis (muscles) [TA] (...musculorum extensoris digitorum et extensoris indicis [TA]); (5) of extensor digiti minimi (muscle) (...musculi extensoris digiti minimi [TA]); and (6) of extensor carpi ulnaris (muscle) [TA] (...musculi extensoris carpi ulnaris [TA]).

Synonym(s): vaginae tendinum carpales dorsalesTA

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.