On the other hand, palmar venous return may also done to your dorsal venous network through perforating branches in the palmar metacarpal arteries to stay away from restriction through gripping actions with the hand. The main veins on the hand are: The scaphoid is at unique threat of avascular necrosis https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/