What is the function of the patella?

The function of the patella, commonly known as the kneecap, is to protect the knee joint. It acts as a shield for the knee, covering and safeguarding the end of the femur and the surface of the tibia, particularly during movements such as bending, squatting, and running. By doing so, it helps prevent injuries from impacts and contributes to the overall stability of the knee.

Additionally, the patella plays a crucial role in enhancing the leverage of the quadriceps muscle during leg extension. This leverage improves the efficiency of movements and increases strength in the knee joint. The anatomical positioning of the patella within the tendon of the quadriceps muscle enhances its effectiveness in facilitating smooth and powerful knee movements, ultimately protecting the joint through its function.