This affordable teaching skeleton is made of high quality medical PVC and wired for natural movement. All of the bones are cast individually, except for the hands and feet. All vertebral arteries, nerve endings and intevertebral discs are shown, including a prolapsed lumbar disc. Skeleton has a removable skull with the calvarium cut and hinged mandible that allows the examination of the TMJ. Arms and legs are held on by small screws, making it easy to bend the extremities in all directions. Comes pelvic mounted on a stand and a labeled diagram is included.