ulnar veins

They join the ulnar veins to form the brachial veins.

In anatomy, the ulnar veins are venae comitantes for the ulnar artery.

Along its course, it is accompanied by a similarly named vein or veins, the ulnar vein or ulnar veins.

Their course is that of the brachial artery (in reverse): they begin where radial veins and ulnar veins join (corresponding to the bifurcation of the brachial artery).