Muscle Function & Other Pertinent Medical Information
- SUPINATOR
-
ORIGIN:
Deep part (horizontal):supinator crest and fossa of ulna. Superficial part (downwards): lateral epicondyle and lateral ligament of elbow and annular ligament
INSERTION:
Neck and shaft of radius, between anterior and posterior oblique lines
ACTION:
Supinates forearm. Only acts alone when elbow extended
