A Posterior View Of The Humerus Showing The Olecranon Fossa

Description

Rotating from a neutral posterior orientation, the animation centers on the distal humerus and tracks inferiorly to the olecranon fossa, the deep depression on the posterior surface just proximal to the trochlea. The medial and lateral epicondyles bracket the distal end, while the trochlear groove sits inferior and slightly anterior to the fossa, aligned with the ulna’s trochlear notch. As the sequence tightens its framing, the relationship between the olecranon fossa and the adjacent supracondylar ridges becomes clear. Bone landmarks stay in strict anatomical position. Olecranon fossa anatomy matters whenever you are teaching elbow extension mechanics or interpreting distal humeral trauma. During terminal extension, the ulna’s olecranon process seats into this fossa, and the animation’s motion cues make that bony clearance easier to grasp than a static posterior plate. It also supports fracture education: supracondylar and intercondylar distal humerus fractures, as well as malunions, can alter the contour of the fossa and contribute to a mechanical block to extension. A small space, big consequences. Use this clip in upper limb osteology labs, gross anatomy teaching, orthopedic lecture slides on elbow biomechanics, and figure callouts in trauma or sports medicine texts discussing extension loss after distal humeral injury. It also fits patient-facing elbow arthroplasty or fracture aftercare materials when you need a clean posterior landmark tour without soft-tissue distraction. Anatomical accuracy verified by SciePro's Medical Advisory Board.