CRNE Canadian Registered Nurse

Answer: D - The nurse can find the olecranon fossa at the elbow. It is a groove found at the distal posterior end of the humerus. It articulates with the olecranon at the proximal end of the ulna. This articulation creates the elbow joint.   From an identification perspective, the olecranon fossa is a deep triangular depression on the posterior side of the humerus, superior to the trochlea. This provides space for the olecranon of the ulna during the extension of the forearm.