ANATOMY

Detailed explanation-1: -The radius is one of two long bones that make up the human antebrachium, the other bone being the ulna. The radius has three borders, three surfaces, and has a prismoid shape in which the base is broader than the anterior border.

Detailed explanation-2: -The radius is one of the two bones that make up the forearm, the other being the ulna. It forms the radio-carpel joint at the wrist and the radio-ulnar joint at the elbow. It is in the lateral forearm when in the anatomical position. It is the smaller of the two bones.

Detailed explanation-3: -Your arm is made up of three bones: the upper arm bone (humerus) and two forearm bones (the ulna and the radius).

Detailed explanation-4: -The ulna is the second longest bone in your arm. It’s one of the longest bones in your body. Most adults’ ulna bones are around 11 inches (in.) long.