Quadriceps muscles

The quadriceps are a group of four muscles in the anterior compartment of the thigh that connect to the patella via the quadriceps tendon. They act on the knee joint to produce leg extension. Rectus femoris also acts on the hip joint as a thigh flexor. The muscles are located:

All four muscles are innervated by the femoral nerve (L2-4). 

See also

Anatomy: Lower limb

Anatomy: Lower limb

Article information

rID: 40223
Section: Anatomy
Synonyms or Alternate Spellings:
  • Quadriceps muscle
  • Quadriceps
  • Quads

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