Our forearm is made of three different bones.

Our forearms are made up of three different types of bones. Humerus, Radius, and Ulna. The humerus forms the joints at the shoulder and the elbow. Radius or radial

bone extends from the other side of the elbow to the side of thumb of the wrist, and it runs parallel to the ulna. Thus ulna stretches from elbow to the young finger.