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The Brachialis acts to flex the elbow whether in pronation or supination, along with Biceps Brachii. As Brachialis is attached to the Ulna, which cannot rotate, it is the only true flexor of the elbow.
- Lower half of the anterior humerus.
- Coronoid process of the ulna.
- Elbow flexion.
- Musculocutaneous nerve.
- Picking up shopping bags.