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J Clin Diagn Res. 2013 Apr;7(4):706-8. doi: 10.7860/JCDR/2013/5212.2887. Epub 2013 Apr 1.

A rare finding of the superficial palmar arch-developmental and clinical significance.

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  • 1Senior Resident, Veer Chandra Singh Garhwali Government Medical Sciences and Research Institute , Srinagar, Uttarakhand, India .

Abstract

The ulnar artery provides a major blood supply to the hand in the form of the superficial palmar arch, with the assistance of the radial artery. A rare pattern of the superficial palmar arch was observed in a formalin fixed, male cadaveric left hand. The ulnar artery was only involved in the formation of this arch, which provided three common palmar digital arteries which ran into the second, third and the fourth spaces between the corresponding digits and one proper palmar digital artery which ran along the ulnar side of the little finger. The main trunk of the ulnar artery bifurcated to supply the thumb and the index finger. The superficial branch of the radial artery did not participate in the arch formation. The arch was completed by the radial artery proper on the dorsolateral surface of the hand, after joining the point of bifuracation of the ulnar artery.

KEYWORDS:

Collateral circulation; Radial artery; Ulnar artery

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