The Anconeus works alongside Triceps Brachii in extending the elbow. It also acts to pull the synovial membrane out of the way of the olecranon process when the elbow is extending.
- Posterior surface of the lateral condyle of the humerus.
- Posterior surface of the upper ulna and its olecranon process.
- Elbow extension.
- Radial nerve.
- Pushing a door closed.