Highly Detailed Human Digestive Canal Model3 parts mounted on one base Shows surfaces of digestive system Highly detailed Includes key This model represents different views of the surface of the digestive system. Part one shows several villi of the small intestine with different cut always to show internal structure. Part two represents the stomach wall and part 3 shows the micro anatomy of the small intestine, focusing on microvilli and how they increase the surface area of the intestine to