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Unformatted text preview: Anconeus posterior surface of the lateral epicondyle of humerus lateral side of olecranon process and posterior surface of upper part of ulna Acts to extend the elbow - it initiates extension and it helps to maintain the extended position; it also stabilizes the elbow during other movements Supinator lateral condyle of humerus, adjacent portion of ulna, radial collateral and annular ligaments lateral surface of upper 1/3 of radius Acts in supination of the forearm...
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- Spring '10
- Triceps brachii muscle, posterior surface