The knee is the associating purpose of a sum of three bones in our legs: the lower end of the thigh bone or the femur, the upper end of the shinbone or the tibia, and the knee top or the patella. Different parts of the knee are the ligament or the stun retaining pads in the middle of muscles, the ligaments or the ropes interfacing muscles to bones, and the tendon or the groups associating our issues that remains to be worked out bones.