The ulna is a bone in which part of the forearm?

The ulna is a bone in which part of the forearm?

• A. Bottom forearm
• B. Upper forearm
• C. Wrist bone
• D. Shoulder blade

Answer: (A)

The ulna is one of the two main bones of the forearm, running from the elbow down to the wrist and lying on the pinky-side of the forearm. Because it spans from the upper part near the elbow to the lower part near the hand, it’s considered part of the bottom forearm rather than the wrist itself or the upper arm. The wrist bones are the carpals, and the shoulder blade is far upstream in the shoulder. So, the best description is the bottom forearm.

The ulna is one of the two main bones of the forearm, running from the elbow down to the wrist and lying on the pinky-side of the forearm. Because it spans from the upper part near the elbow to the lower part near the hand, it’s considered part of the bottom forearm rather than the wrist itself or the upper arm. The wrist bones are the carpals, and the shoulder blade is far upstream in the shoulder. So, the best description is the bottom forearm.