Showing the whole digestive system. from mouth to colon. all with one model. The sagittally sectioned head shows the mouth and oesophagus. with hand painted salivary glands. Trace the path of ingested food through the stomach. small and large intestines. and colon. The stomach section and the transverse colon can be detached to reveal the inner structure of the liver and gall bladder. the pancreas and spleen are also shown. The three piece model is mounted on a base with numbered Key Card.