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Ulnar head of flexor carpi ulnaris: anatomy, location and function

The ulnar origin of flexor carpi ulnaris. Flexes and adducts the wrist.

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Highlighted in the model: Ulnar head of flexor carpi ulnaris. Click any part to read about it, or switch off “Highlight topic” to see the whole body. 3D data: BodyParts3D, © The Database Center for Life Science, CC BY 4.0; meshes simplified and recoloured. The model is an adult male.

Ulnar head of flexor carpi ulnaris at a glance

What it is
The ulnar origin of flexor carpi ulnaris.
Location
Originates from the medial olecranon and upper posterior border of the ulna; the muscle inserts onto the pisiform, hook of the hamate and base of the fifth metacarpal.
Function
Flexes and adducts the wrist.
Body system
Muscular · paired (left and right)
FMA ID
FMA38619 (Foundational Model of Anatomy)

Key facts

  • Innervation: ulnar nerve (C7–C8)
  • The ulnar nerve passes between the humeral and ulnar heads

Clinical relevance

Compression here can cause cubital tunnel syndrome.

Structures next to the ulnar head of flexor carpi ulnaris

The nearest named structures in the 3D model, measured from the centre of each part:

References

  1. Foundational Model of Anatomy: Ulnar head of flexor carpi ulnaris (FMA38619). EMBL-EBI Ontology Lookup Service.
  2. OpenStax. Anatomy and Physiology 2e, §11.2 Naming Skeletal Muscles. Rice University, 2022.
  3. Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.

Related anatomy

Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.