Do you need to teach the entire digestive system? This 46 slide PowerPoint takes you through the digestive system one organ at a time. It includes the mouth, saliva, enzymes, physical and chemical digestion, esophagus, epiglottis, stomach, peristalsis, acids, mucus, duodenum, small intestine, villi, large intestine, colon, pancreas, liver, gall bladder, appendix, rectum, and anus. There is also a diagram that helps students label and color each part. If you are interested, you can also purchase a note taking guide that students can fill out while going through the PowerPoint.