Natural motion in every part: upper & lower limb, hand, feet, head, shoulder, hip & spine. Medial and lateral rotation of arms and legs, flexion and extension of elbows and knees. Shoulders are flexibly mounted to show natural hyperextension, pronation and supination of the forearms. One hand and foot mounted on elastic cord. Flexible spine with extrasoft discs to show life-like deformation while stretching and bending spine. With spinal cord, nerve ends, arteries, sectioned sacrum, sacral flap, 5-leg stand and dust-cover.