Resumen

BIANCHI, Homero F. RAMIFICATION OF THE SUPERFICIAL BRANCH OF THE RADIAL NERVUS. Rev. chil. anat. [online]. 2002, vol.20, n.3, pp. 247-250. ISSN 0716-9868.  doi: 10.4067/S0716-98682002000300002.

Based upon 36 fresh and embalmed adult cadaver specimens, the arrangement of the superficial branch of the radial nerve (SBRN)  is described in the present study.  For that purpose, the radial styloid process (RSP) and  the tendon of the  extensor pollicis longus (EPL) have been used as fixed points of reference.  It was proved in all these  cases,  that the  SBRN became divided proximal to the SRP into a  volar (R1)  and a dorsal branch.  The latter, in the majority of these cases became divided at  the SRP level in a radial branch  and an ulnar branch.  The digital dorsal collaterals of the thumb, indexfinger and middle finger originate from these two branches.  Four groups of digital collaterals are made up according to the variation of the origin of C1.  When considering EPL, the origin of the digital collaterals occurs proximal and over EPL in almost identical proportions.

Palabras clave : Anatomy; Radial nerve; Peripherical nerves.