Variant Formaion of Radial Nerve – A Case Report
Variant Formaion of Radial Nerve
Keywords:
Brachial plexus, Radian nerve, Variant formationAbstract
During the routine dissection for the undergraduate students, variant formation of the radial nerve is observed. Normally the radial nerve is the branch of the posterior cord of the brachial plexus (root value C5, C6, C7, C8 and T1 ). In this cadaver, the radial nerve was formed by a branch from the lateral cord, a branch from the medial cord and a branch from the posterior cord. The lateral root and the medial root pass on lateral and medial sides of the axillary artery and fused posterior to it. At this point, the radial nerve received a branch from the posterior cord – the posterior root. Hence, the radial nerve is valiantly formed by a lateral, a medical and a posterior root. These findings were observed on both right and left sides. Thus the variant formation of the radial nerve was bilateral. Once formed, the nerve had the normal course and branches. [Kshirsagar V NJIRM 2014; 5(6):120-122]
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