Muscles / Forearms
Supinator
- Forearms
- Forearm & wrist
- Deep layer
Anatomy
- Origin
- Lateral epicondyle, radial collateral and anular ligaments, supinator crest of the ulna
- Insertion
- Lateral, posterior and anterior surfaces of the proximal third of the radius
- Nerve
- Deep branch of the radial nerve (C6-C7 (sources vary C5-C8))
Actions
- Supinates the forearm
Exercises that train it most
Notes
- The posterior interosseous nerve enters it under the arcade of Frohse (radial tunnel syndrome).
References (4)
- Standring S, ed. Elsevier. Gray's Anatomy: The Anatomical Basis of Clinical Practice. 42nd ed.
- Dalley AF, Agur AMR. Wolters Kluwer. Moore's Clinically Oriented Anatomy. 9th ed.
- Neumann DA. Elsevier. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed.
- Betts JG, Young KA, Wise JA, et al. OpenStax (free, openly licensed textbook). Anatomy and Physiology 2e