GROSS ANATOMY

Detailed explanation-1: -The ulna is one of two bones that make up the forearm, the other being the radius. It forms the elbow joint with the humerus and also articulates with the radius both proximally and distally. It is located in the medial forearm when the arm is in the anatomical position. It is the larger of the two forearm bones.

Detailed explanation-2: -The ulna is the medial bone of the forearm and the longer of the two parallel forearm bones. Like the radius, the ulna also has three main parts: a proximal end, shaft and a distal end. The proximal end articulates with the distal humerus and the head of the radius.

Detailed explanation-3: -The ulna (pl. ulnae or ulnas) is a long bone found in the forearm that stretches from the elbow to the smallest finger, and when in anatomical position, is found on the medial side of the forearm.

Detailed explanation-4: -The radius and ulna are the two bones of the lower arm. Rotation of the wrist is actually accomplished by a rotation of the radius around the ulna. The radius is on the lateral side of the arm, while the ulna is medial.

Detailed explanation-5: -The ulna is located on the medial side of the forearm, and the radius is on the lateral side. These bones are attached to each other by an interosseous membrane. More distal is the shaft of the ulna.