Saxena Alok, Agarwal Kishore Kumar, Ray Biswabina, Pyrtuh Samuel
Senior Resident, Veer Chandra Singh Garhwali Government Medical Sciences and Research Institute , Srinagar, Uttarakhand, India .
J Clin Diagn Res. 2013 Apr;7(4):706-8. doi: 10.7860/JCDR/2013/5212.2887. Epub 2013 Apr 1.
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.
尺动脉在桡动脉的辅助下，以掌浅弓的形式为手部提供主要血液供应。在一只用福尔马林固定的男性尸体左手标本中，观察到一种罕见的掌浅弓形态。尺动脉仅参与该掌浅弓的形成，它发出三条指掌侧总动脉，分别进入相应手指之间的第二、第三和第四间隙，以及一条沿小指尺侧走行的指掌侧固有动脉。尺动脉主干分叉后为拇指和示指供血。桡动脉浅支未参与掌浅弓的形成。桡动脉本干在手部背外侧表面与尺动脉分叉点汇合后，完成了掌浅弓的构成。
