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Ulnar head of pronator teres: anatomy, location and function

The smaller ulnar head of pronator teres. Pronates the forearm and weakly flexes the elbow.

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Highlighted in the model: Ulnar head of pronator teres. 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 pronator teres at a glance

What it is
The smaller ulnar head of pronator teres.
Location
Originates from the medial coronoid process of the ulna and joins the humeral head to insert onto the middle of the lateral surface of the radius.
Function
Pronates the forearm and weakly flexes the elbow.
Body system
Muscular · paired (left and right)
FMA ID
FMA38562 (Foundational Model of Anatomy)

Key facts

  • Innervation: median nerve (C6–C7)
  • The median nerve passes between its two heads

Clinical relevance

Median nerve compression here causes pronator syndrome.

Structures next to the ulnar head of pronator teres

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

References

  1. Foundational Model of Anatomy: Ulnar head of pronator teres (FMA38562). 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.