Fig. 2

Median artery course through the palm. Within the palm, the median artery was first seen exiting the carpal tunnel, alongside the median nerve, prior to branching and providing both proper digital vessels to the thumb and anastomosing with the radial artery over the adductor pollicis muscle. An additional branch to provide the proper digital artery of both the radial side of the index finger as well as the common digital artery to the second webspace as observed. In summary, the variant median artery observed provided the primary blood supply to the thumb, index finger, and the radial side of the long finger. It was observed proximally to provide another anastomotic branch to the ulnar artery. This anastomosis was after the ulnar artery had branched into the common digital arteries to the third and fourth webspace and the proper digital artery to the ulnar side of the fifth finger