radial artery

n.

1. An artery with its origin in the brachial artery and with branches to the radial recurrent, dorsal metacarpal, and dorsal digital arteries, the principal artery of the thumb, the palmar metacarpal, and muscular and carpal arteries.
2. Radial index artery.

1. A major artery that follows the course of the radius on the ventral aspect of the forearm to the wrist, where it is felt as a pulse, and enters the hand. It supplies blood mostly to the thumb, index finger, and muscles of the forearm.