when the triceps brachii muscle contracts what movements does it produce?
The triceps brachii attaches to the olecranon process. Contraction of the triceps brachii muscle causes the ulna to rotate around the distal humerus, causing extension of the forearm.he triceps brachii muscle divides into ________ parts or heads. Nursing and Clinical â¢ Started by kami â¢ Views: 17 â¢ Last post by normale (2 weeks ago). This topic is currently locked from adding new posts. Only administrators and moderators can reply.