Sign up for our newsletter
Get health tips, wellness advice, and more

Thanks for signing up!
You've been added to our list and will hear from us soon.

See all Healthline's newsletters »

Flexor carpi ulnaris

The anterior muscles of the forearm consist of three layers, the superficial, intermediate, and deep flexors. All three layers are located in the flexor compartment.

Among the superficial muscles is the flexor carpi ulnaris. It arises, along with the other superficial muscles, from the medial epicondyle of the humerus. But the flexor carpi ulnaris muscle has an additional attachment point on the head of the ulna. It inserts at two wrist bones: the pisiform bone and the hook of the hamate. It also inserts at the base of the pinky finger.

Blood is supplied to the muscle by the ulnar collateral arteries and the anterior and posterior ulnar recurrent arteries. It also receives blood from small branches of the ulnar artery. The flexor carpi ulnaris is enervated by the ulnar nerve.

The flexor carpi ulnaris muscle works in tandem with the extensor carpi ulnaris. These muscles flex the wrist and adduct it (move it laterally in the direction of ulnar).

Written and medically reviewed by the Healthline Editorial Team
Co-developed by:

In Depth: Flexor carpi ulnaris

Debugging Tools

Level: 2
Frame: 6
Toggle Hotspot
VP Data Tool
HexTable json from Steve
Steve's ajax layer update call:
[still on original layer]

Ad values:

adParams['k1']: othermusculoskeletaldisorders,flexor_carpi_ulnaris_muscle,8815968

More on BodyMaps

Take a Video Tour

Learn how to rotate, look inside and explore the human body. Take the tour

BodyMaps Feedback

How do you like BodyMaps? How can we improve it? Tell us what you think