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Vastus intermedius: anatomy, location and function

The deep quadriceps muscle lying beneath rectus femoris. Extends the leg at the knee.

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Highlighted in the model: Vastus intermedius. 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.

Vastus intermedius at a glance

What it is
The deep quadriceps muscle lying beneath rectus femoris.
Location
Originates from the anterior and lateral upper two thirds of the femoral shaft and inserts into the quadriceps tendon.
Function
Extends the leg at the knee.
Body system
Muscular · paired (left and right)
FMA ID
FMA38934 (Foundational Model of Anatomy)

Key facts

  • Innervation: femoral nerve (L2–L4)
  • Blood supply: lateral circumflex femoral artery

Structures next to the vastus intermedius

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

References

  1. Foundational Model of Anatomy: Vastus intermedius (FMA38934). 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.