The knee is one of the most complex joints in the body. The main component of the knee is the juncture between the tibia and the femur. The tibia is your shinbone and the femur is your thighbone. The other component that comprises the knee joint is a smaller bone that runs across the tibia. This bone is known as the patella or kneecap.
The steadiness of the knee joint is dependent upon the strength of the ligaments that connect the bones in your knee. The movement of the knee relies on the tendons that link your leg muscles to the bones in your knee.
One of the most sensitive areas of the knee is the meniscus. The meniscus is found between the tibia and femur and is made up of cartilage. The meniscus has many functions within the knee joint, including protection of the joint surface and absorption of any shock or forces exerted. The meniscus absorbs all the shock that comes from actions like jumping, walking and running.