Which structure on the ulna articulates with the trochlea of the humerus to form part of the elbow joint?

Understand the Problem

The question is asking about the specific structure on the ulna that connects with the trochlea of the humerus to help form the elbow joint. It requires knowledge of human anatomy, specifically the anatomy of the elbow joint.

More Information

The trochlear notch is a large, C-shaped notch that forms part of the hinge mechanism in the elbow, allowing for flexion and extension of the forearm.

Tips

Confusing the trochlear notch with other structures on the ulna, such as the olecranon, is a common mistake.

Sources

• Upper Limb - Bones of the Ulna - teachmeanatomy.info
• The Elbow Joint - Structure - Movement - teachmeanatomy.info
• Trochlear notch | anatomy - Britannica - britannica.com