Vastus lateralis muscle
Vastus Lateralis Muscle
The Vastus Lateralis Muscle (pronounced: VAS-tus lat-uh-RAY-lis) is one of the four muscles that make up the quadriceps group in the human body.
Etymology
The term "Vastus" is derived from the Latin word 'vastus' meaning 'huge' or 'great'. "Lateralis" is derived from the Latin word 'latus' meaning 'side'. Thus, the term 'Vastus Lateralis' refers to the large muscle on the side of the thigh.
Anatomy
The Vastus Lateralis Muscle is the largest and most powerful part of the quadriceps femoris, a muscle group that extends along the front of the thigh. It originates from the upper part of the femur and attaches to the patella, or kneecap, via the quadriceps tendon.
Function
The primary function of the Vastus Lateralis Muscle is to extend the knee joint. It also plays a role in stabilizing the knee and controlling movement of the lower leg.
Related Terms
- Quadriceps Femoris: The muscle group in the thigh that the Vastus Lateralis is a part of.
- Femur: The bone from which the Vastus Lateralis originates.
- Patella: The bone to which the Vastus Lateralis attaches.
- Quadriceps Tendon: The tendon through which the Vastus Lateralis attaches to the Patella.
See Also
External links
- Medical encyclopedia article on Vastus lateralis muscle
- Wikipedia's article - Vastus lateralis muscle
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