Anconeus connects the medial aspect of the ulna to the lateral aspect of the humerus and is a short triangular elbow muscle. It is occasionally classified as a branch of the triceps brachii muscle, due to its location and functionality.
Origin
It arises from the lateral epicondyle of the humerus and has a wide attachment within the posterolateral surface of the olecranon as well as associated posterior surface of the ulna, by its own different tendon.
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