Vastus lateralis
Vastus Lateralis
The Vastus Lateralis is one of the four muscles in the quadriceps group, located in the anterior compartment of the thigh. It is the largest and most powerful part of the quadriceps femoris, a muscle group that extends the knee.
Anatomy[edit | edit source]
The Vastus Lateralis originates from the upper part of the femur, and it extends down to the patella, or kneecap. It is innervated by the femoral nerve and its blood supply comes from the lateral circumflex femoral artery.
Function[edit | edit source]
The primary function of the Vastus Lateralis is to extend the knee. It also helps in stabilizing the patella and the knee joint during walking or running.
Clinical Significance[edit | edit source]
The Vastus Lateralis is often used as an injection site for intramuscular injections, due to its size and accessibility. Conditions such as muscle atrophy or muscle strain can affect the Vastus Lateralis, impacting mobility and quality of life.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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Contributors: Prab R. Tumpati, MD
