Dorsal carpal branch of the radial artery
Encyclopedia
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.
Thumb
The thumb is the first digit of the hand. When a person is standing in the medical anatomical position , the thumb is the lateral-most digit...
; crossing the carpus
Carpus
In tetrapods, the carpus is the sole cluster of bones in the wrist between the radius and ulna and the metacarpus. The bones of the carpus do not belong to individual fingers , whereas those of the metacarpus do. The corresponding part of the foot is the tarsus...
transversely toward the medial border of the hand, it anastomoses with the dorsal carpal branch of the ulnar artery.