Metacarpus - The metacarpus consists of 5 long bones on the palmar surface of the hand. The five metacarpal bones, together with the wrist joint and carpal bones, determine the shape of the human hand. One of the most characteristic features of the human body is the presence of an arm and hand. The main element of the hand is the metacarpus. This is the part of the forearm that points down and connects to the bones of the fingers. It consists of approximately 2-3 bones, depending on how many fingers there are on the hand. The shape of the metacarpus depends on the location of the bone on the forearm and the number of fingers