Natural size. Separates into 35 parts: head (10), shoulder joint, thoracic and abdominal cover , lungs (4), heart , bronchial tree, diaphragm, oesophagus, liver, stomach , small and large intestine with duodenum and pancreas, opening appendix, spleen, descending aorta with inferior vena cava, half kidney, male genital organs (4), torso. On a base.