Also called: FCR
The flexor carpi radialis is a superficial muscle on the front of the forearm. It arises from the medial epicondyle of the humerus and inserts on the bases of the second and third metacarpals. The median nerve supplies it, and it flexes and abducts the wrist.
| Origin | Common flexor origin on the medial epicondyle of the humerus. |
|---|---|
| Insertion | Palmar surfaces of the bases of the second and third metacarpals. |
| Innervation | Median nerve (C6-C7). |
| Blood supply | Radial artery and ulnar artery. |
| Action | Flexes and abducts (radially deviates) the wrist. |
3D model: BodyParts3D (CC BY 4.0), adult male reference anatomy. Highlighted structure shown with nearby bones for context.
Its tendon is a landmark at the wrist: the radial artery pulse is usually felt just lateral to it, and the median nerve lies just deep and medial.
From the medial epicondyle of the humerus through the common flexor tendon.
The median nerve.
Test yourself
Upper limb muscle quiz
Practise origins, insertions, nerve supply and locations with instant feedback.
Explore in context
Open the flexor carpi radialis in the full 3D atlas
Toggle body systems, explode the model and inspect every neighbouring structure.