What are the quadriceps called?

The front thigh muscles is called the quadriceps femoris. Gray's Anatomy (1918) describes it as a group of four muscles on the front of the thigh: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.

What it is

  • A group of four muscles on the front of the thigh: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.
  • Their tendons unite into a single tendon that surrounds the patella.
  • The main straighteners of the knee.

Where it is

  • Fill the front and sides of the thigh.
  • Arise from the hip bone and the shaft of the femur.
  • Insert through the patellar ligament into the tibia.

Source:

Last verified: 2026-07-18

  • Best Anatomy Answers is an educational reference about human anatomy. It is not medical advice — for any health concern, talk to a licensed medical professional.

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