What type of bones are primarily found in the knee?

The knee joint primarily involves the patella, which is classified as a sesamoid bone. Sesamoid bones are embedded within tendons and help in reducing friction, providing mechanical advantage to the muscles that work across the joint. The patella's role in the knee is significant, as it protects the knee joint and improves the leverage of the quadriceps muscle during activities such as walking and running.

While the other types of bones are present in the body, they do not predominantly characterize the knee. Long bones, like the femur and tibia, do play an essential role in the knee's structure and function, but they are not specifically the bones primarily identified within the knee itself. Short bones and irregular bones are not specific to the knee joint and don't play a significant role in its function. Thus, the presence of the patella as a sesamoid bone is crucial in defining the type of bones primarily found in the knee.