The term 'BONES' is a collective term for the various BONES in the human body, including the radius, ulna, and other BONES. The radius and ulna are two of the BONES in the forearm, located on the thumb side of the arm. The radius is the larger of the two BONES and is connected to the humerus at the elbow joint. The ulna is the smaller bone and is located on the little finger side of the arm. Other BONES in the body include the vertebrae, which make up the spine, and the ribs, which protect the organs in the chest cavity.