Use this highly detailed, 33" miniature skeleton model to reinforce students' knowledge of the human skeletal and muscular systems. The skeleton's skull features a cut calvarium for easy skullcap removal and a spring-held lower jaw. Muscle origins (red) and insertions (blue) are hand painted and labeled on the skeleton's right side; a key is included. Durable hardware at major joints allows natural movement to be demonstrated. Skeleton is mounted on a metal rod attached to a plastic base.