Vastus lateralis

Diagram of anterior muscles. Diagram of posterior muscles.

The vastus lateralis muscles are located in the upper anterior (anterior = 'front') of the legs of the human body.

The two vastus lateralis muscles, one of which is located in each leg, are the most lateral (lateral = 'away from the mid-line of the body' so towards the outer -right or -left side) of the four quadriceps muscles of the human thighs.

Origin, Insertion and Actions of the Vastus Lateralis muscles:

Point of Origin:
  • Upper part of the femur bone
Points of Insertion:
Actions:
  • Extends the leg at the knee joint.

The vastus lateralis muscles are labelled on our diagram of human anterior muscles.

More about Muscles:

The following are some popular pages in the section about the human muscular system:

There are also more pages about the words used to describe muscles (terminology), the anatomy and physiology of muscles, muscular disorders and associated topics. See also books about sports medicine.

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