| A | B |
| digestive system | breaks down the food you eat into a form that your body cells can use as fuel |
| excretory system | gets rid of some of the wastes your body produces |
| digestion | process of breaking down food into a form the body can use |
| saliva | contains chemicals called enzymes that help break down food |
| esophagus | muscular tube leading to the stomach |
| liver | gland that helps digest fat and filters poisonous wastes, etc |
| gallbladder | stores digestive juice from the liver |
| small intestine | most of digestion takes place here |
| salivary glands | produce saliva to help break down food |
| stomach | muscular organ that produces digestive juice containing enzymes and acid |
| pancreas | gland that produces digestive enzymes |
| colon | large intestine, collects solid wastes |
| Types of Body Wastes | solid, liqud, and carbon dioxide gas |
| kidneys | filtering system for the blood |
| excretion | process of removing liquid wastes from the body |