Final answer:
The ulnar notch of the radius is located posterior to the distal end of the radius and articulates with the head of the ulna, while the radiocarpal joint is also located posterior to the radius end and articulates with the carpal bones.
Step-by-step explanation:
The name of the area that is located posterior to the distal, smooth surface of the radius is known as the ulnar notch of the radius. This shallow depression articulates with the head of the ulna to form the distal radioulnar joint. The radiocarpal joint, or the wrist joint, is also located posterior to the distal end of the radius, and it is where the radius articulates with the scaphoid, lunate, and triquetrum carpal bones. The area that is located posterior to the distal, smooth surface of the radius is called the radial notch of the ulna. It is a small, smooth area on the lateral side of the proximal ulna and articulates with the head of the radius as part of the proximal radioulnar joint.