The natural size model shows the complete digestive tract from the mouth cavity to the return. The mouth cavity, the pharynx and the first tract of the esophagus are dissected along the medial sagittal plane. The liver is shown together with the gall bladder and the pancreas is dissected to expose the inner structures. the stomach is open along the frontal plane, the duodenum, the cecum, part of the samll intestine and the rectum are open to expose the inner structure. The transverse colon is removable