An unusual ulnar artery: its embryological basis and clinical significance.

The principal arteries of the upper limb show a wide range of variation that is of considerable interest to orthopaedic surgeons, plastic surgeons, radiologists and anatomists. The superficial and high origin of the ulnar artery is a well known but rarely encountered abnormality. In a routine dissection of the left upper limb of an adult male cadaver, a superficial ulnar artery was noted.