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- Use of this artwork requires proper credit to be given (Permission: Dr. Joe Muscolino. www.learnmuscles.com – art work Giovanni Rimasti)
ATTACHMENTS:
- The brachioradialis attaches from the lateral supracondylar ridge of the humerus to the styloid process of the radius.
ACTIONS:
- Flexes the forearm at the elbow joint
- Pronates the forearm at the radioulnar joints (from a position of full supination to a position that is halfway between full supination and full pronation)
- Supinates the forearm at the radioulnar joints (from a position of full pronation to a position that is halfway between full supination and full pronation)
- Flexes the arm at the elbow joint (reverse closed-chain action)
NOTES:
- The brachioradialis is one of the three “B”s of elbow joint flexion. The other two are the biceps brachii and brachialis.
- The brachioradialis is probably the best known example of a muscle whose joint action changes when the position of the joint changes. But many muscles have this ability.
