What Is the Radius Bone?
The lateral bone of the forearm that is located between the elbow and the hand and that is always aligned with the thumb is called the radius bone. “Lateral” is a term that refers to the side of the body or the position that is farthest away from the mid-line of the torso when the body is in what is known as the anatomical position, described as a person who is standing facing forward with the palms of his or her hands also turned forward. Palpating the lower arm might feel like there is only one, somewhat flat bone in the extremity, but the forearm is supported and shaped by two distinct bones: the radius bone and the ulna bone.