Dorsal carpal branch of the radial artery
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
The dorsal carpal branch of the radial artery (posterior radial carpal artery) is a small vessel which arises beneath the extensor tendons of the thumb; crossing the carpus transversely toward the medial border of the hand, it anastomoses with the dorsal carpal branch of the ulnar artery.