Flexor Carpi Ulnaris

This section is about
human arm and hand muscles

The flexor carpi ulnaris muscles are located on the palmar surface of the forearm. They work with other 'wrist flexor' muscles to flex the wrist of the associated (right- or left-) arm.

In general a 'flexor' muscle is one that causes flexion, i.e. a movement that decreases the angle between articulating bones.

Origin, Insertion and Actions of the Flexor Carpi Ulnaris muscles:

Points of Origin:

Humeral head:

Medial epicondyle of the humerus (bone)

Ulnar head:

Upper part of the ulna bone

Points of Insertion:

Pisiform (carpal bone)
Hook of the hamate (carpal bone), via ligaments
Base of the 5th metacarpal (hand bone), via ligaments

Actions:

Adducts the ulna (bone)
Flexes the wrist - in combination with the other 'wrist flexor' muscles - the flexor carpi radialis and the palmaris longus

The approximate locations of the flexor carpi ulnaris muscles are labelled on the diagram of human anterior muscles.

More about Muscles:

The following are some popular pages in the section about the human muscular system:

The structure of muscle tissue
The structure of muscle cells
Labelled diagrams of the muscles in different parts of the body including anterior muscles, posterior muscles and facial muscles
Types of muscle contractions
Movements at joints

There are also more pages about the words used to describe muscles (terminology), the anatomy and physiology of muscles, muscular disorders and associated topics. See also books about sports medicine.

This may be useful study or revision material for students following courses in human anatomy, sports science, massage, physiotherapy or other subjects that require knowledge of the muscular structures of the human body.

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Flexor Carpi Ulnaris

Origin, Insertion and Actions of the Flexor Carpi Ulnaris muscles:

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