This 3-part model shows the alimentary canal from the mouth to the rectum. Shown in median section are the buccal cavity, pharynx, esophagus, 2-part stomach, duodenum, small and large intestines, opened appendix, and rectum. The transverse colon can be removed. The liver and pancreas are also shown. Mounted on a plastic base. Size: 36" x 12 1/2" x 4 3/4".