Resumen

ALVAREZ GUISBERT, Orlando José  y  CAMPOHERMOSO RODRIGUEZ, Omar. Músculo accesorio del abductor largo del pulgar o tercer abductor. Cuad. - Hosp. Clín. [online]. 2006, vol.51, n.1, pp.79-84. ISSN 1562-6776.

In the study of the tendons of the accessory muscle of the long abductor of the thumb, based on the anatomical dissection of 250 mature cadavers of mestizo race of the highland and valley, we register that the anatomical variations are very frequent. The presence of accessory tendons happened in all the dissected pieces. This constant muscle, in our means, originates in the inferior third of the dorsal face of the radius, ulna and of the membrane interosseous; differing of the long abductor of the thumb and of the extending one short of the thumb. He she goes down, at the doll's level, it passes below the extending retináculo in the first sliding osteofibrosa of the lower extremity of the radius together with the short long and extending abductor of the thumb. Their insert distal is carried out in first metacarpal.

Palabras clave : Accessory muscle of the long abductor of the thumb; dissection; cadavers.

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