They include bones, ligaments, tendons, and cartilage. The knee, one of the body's largest and most complex joints, joins the thigh bone (femur) to the shin bone (tibia). The kneecap (patella ...

Four important synovial joints used in most sporting actions are the elbow and shoulder joints in the arm, and the knee and hip joints ... up of a round end of one bone that fits into a small ...