The flexor carpi radialis is a muscle within the superficial compartment of the anterior forearm. Attachments: Originates from the medial epicondyle of the humerus and attaches to the base of the second and third metacarpals Actions: Flexion and abduction at the wrist. Innervation: Median nerve. Blood supply: Ulnar artery. By TeachMeSeries Ltd (2025) Fig 1The superficial muscles of the anterior forearm. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Print Article Rate This Article