When the olecranon fossa of the humerus articulates with the olecranon process of the ulna, it allows a person to straighten the arm at the elbow.

Question

Quizplus · Accepted Answer

The olecranon fossa of the humerus forms a joint with the olecranon process of the ulna that allows for extension of the forearm at the elbow. Therefore, when this joint is engaged, a person is able to straighten their arm at the elbow.

When the Olecranon Fossa of the Humerus Articulates with the Olecranon