However, palmar venous return also can carried out towards the dorsal venous network through perforating branches of the palmar metacarpal arteries to stay away from restriction all through gripping steps in the hand. The main veins from the hand are: The radial nerve innervates the remainder with the dorsal hand. https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/