Brachioradialis
A forearm muscle that aids in elbow flexion. In pronation, the brachioradialis tends to contract more powerfully because the biceps brachii is inhibited.
This muscle helps to stop elbow flexion during deceleration.
The origin of the brachioradialis is on the lateral side of the distal end of the humerus above the lateral epicondyle - specifically the lateral supracondyle.
The muscle's insertion is on the distal end of the radius. This is what is best described as a neutral insertion because muscle tends to supinate when the forearm is pronated and pronate when the forearm is supinated.
The left drawing in the diagram to the right shows the anterior view of the right elbow, the right drawing shows the posterior view.
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