Structure H is the:

Structure H is the:

• A. Ulnar head
• B. Olecranon process
• C. Radial head
• D. Medial epicondyle

Answer: (B)

The structure shown is the olecranon process, the prominent posterior projection of the ulna at the elbow. It forms the tip of the elbow and serves as the attachment for the triceps muscle, while articulating with the olecranon fossa of the humerus when the elbow extends. This distinguishes it from the ulnar head (distal end near the wrist), the radial head (proximal radius near the elbow), and the medial epicondyle (a distal projection on the humerus).

The structure shown is the olecranon process, the prominent posterior projection of the ulna at the elbow. It forms the tip of the elbow and serves as the attachment for the triceps muscle, while articulating with the olecranon fossa of the humerus when the elbow extends. This distinguishes it from the ulnar head (distal end near the wrist), the radial head (proximal radius near the elbow), and the medial epicondyle (a distal projection on the humerus).