Abstract
The hands receive profuse blood supply by superficial and deep palmar arches (SPA & DPA), though both arches are constituted by radial and ulnar arteries, variations are constantly observed in SPA. During routine dissections we observed unilateral incomplete SPA being formed by superficial branches of radial and ulnar arteries in the right hand of an old male cadaver. These two arteries remained independent without anastomosis forming incomplete arch. The superficial branch of radial artery supplied the thumb and radial side of index finger by its two branches - the arteriaprincepspollicis and arteriaradialisindicis. Normally these two branches are given by radial artery but here they are given by a branch of radial artery. The presence of an incomplete SPA as in this case is a potential danger in RA harvesting for CABG. Variations in the SPA play a key role in microvascular surgical procedures of hand, RA interventions and arterial graft applications.
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