APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -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. That is, the ulna is on the same side of the forearm as the little finger.

Detailed explanation-2: -Introduction. The ulna is one of the two forearm long bones that, in conjunction with the radius, make up the antebrachium. The bone spans from the elbow to the wrist on the medial side of the forearm when in anatomical position. In comparison to the radius, the ulna is described to be larger and longer.

Detailed explanation-3: -The anterior (or medial) border is thick and rounded, originating medial to the ulnar tuberosity and running along the anteromedial shaft. The distal one-third of the border angles posteriorly, and it terminates near the medial side of the styloid process.

Detailed explanation-4: -The radius is located laterally, near the thumb, and the ulna medially, near the little finger. The radius and the ulna have a styloid process at the distal end; they are also attachment sites for many muscles.