Which of the following statements accurately describes the ulna? (select three)

The ulna is a key bone in the forearm, and understanding its anatomy is important in the study of radiological technology. The statement that the ulna articulates with the radius both proximally and distally is accurate because the ulna and radius form the forearm, working together to allow for movement and stability. At the proximal end, the head of the radius articulates with the ulna at the radial notch, and distally, the ulnar head meets the radius at the ulnar notch on the distal radius. This dual articulation is fundamental for coordinated forearm movement, such as pronation and supination.

The other statements provide additional information that can be useful but are specific to individual components or characteristics of the ulna. While discussing them isn't necessary for understanding why the selected answer is correct, they showcase various attributes of the ulna that are helpful in a comprehensive study of upper limb anatomy.