| A | B |
| Mouth | chops and grinds food; chemical digestion of starches with saliva |
| Esophogus | Tube that transports food from mouth to stomach |
| stomach | mechanical digestion and chemical digestion with hydrochloric acid and pepsin |
| small intestine | main digestive organ |
| large intestine | removes water from food waste |
| rectum | stores food waste before it leaves the body |
| villi | increase surface area of small intestine |
| saliva | breaks down starch into sugar |
| anus | where food waste leaves body |
| organs in mouth that tear and grind food | teeth |
| cell | smallest unit of life |
| group of organs that work together to do a job | organ system |
| this keeps stomach from digesting itself | function of stomach mucus |
| this stores bile | gall bladder function |
| injects acid buffer into chyme as it leaves the stomach | pancreas function |