ANATOMY

Detailed explanation-1: -The radial vein is one of the two major deep veins of the forearm, along with the ulnar vein. As is usual in the upper and lower limbs, there are often two veins (venae comitantes) that run on either side of the radial artery and anastomose freely with each other. It forms in the hand from the deep palmar venous arch.

Detailed explanation-2: -In anatomy, the radial veins are paired veins that accompany the radial artery through the back of the hand and the lateral aspect of the forearm. They join the ulnar veins to form the brachial veins.

Detailed explanation-3: -Results: The mean diameter of the radial artery was 28% larger than that of the ulnar artery in the right arm (p < 0.001) and 26% larger in the left arm (p < 0.001).

Detailed explanation-4: -The radial artery runs along the lateral part of the front of the forearm by the side of the superficial branch of the radial nerve. The ulnar artery passes medially deep to the pronator teres muscle and it then travels into the distal part of the forearm together with the ulnar nerve.