Supinator
Musculus supinator
MuscularDeep musclesArmLeft and right
View left in 3D View right in 3D
- What it is
- Deep curved sheet wrapping around the upper third of the radius, from the lateral epicondyle, radial collateral and annular ligaments and the supinator crest of the ulna.
- Function
- Supinates the forearm (turns the palm up), especially with the elbow straight.
- Size
- About 6 cm long.
- Clinical note
- The deep branch of the radial nerve passes through it beneath the arcade of Frohse, a site of nerve entrapment.