The human skeletal system consists of all of the bones, cartilage, tendons, and ligaments in the body. Altogether, the skeleton makes up about 20 percent of a person’s body weight. An adult’s ...

The musculoskeletal system—bones, muscles, joints, and connective tissues—is the framework that enables movement, supports posture, and protects vital organs. Yet, 1 in 2 adults over 50 ...