MuscleForearm — anterior (superficial)
Flexor carpi radialis
Latin: M. flexor carpi radialis sinistra
Location: Forearm
Paired structure: one on the left and one on the right side of the body.
View the flexor carpi radialis in 3DOrigin
Medial epicondyle of the humerus (common flexor origin).
Insertion
Base of the second metacarpal (and partially the third).
Action
Flexes and abducts (radially deviates) the wrist; stabilises the wrist platform for gripping.
Nerve supply
Median nerve (C6–C7).
Blood supply
Radial and ulnar arteries.
Clinical relevance
FCR runs in its own fibro-osseous tunnel beside the carpal tunnel; its tendon guides the volar (Henry) approach to the distal radius and can be harvested for thumb-base ligament reconstruction.
Educational anatomy reference, not medical advice. About this content.