| A | B |
| digestive system | breaks down food so body can use it |
| chewing | first step in digestion |
| involved in chewing | teeth, tongue, salivary glands |
| esophagus | carries food to stomach |
| epiglottis | covers trachea to keep food headed to stomach |
| stomach | produces fluid to make food soupy paste |
| liver, pancreas, gall bladder | produce chemicals to help digestion in small intestine |
| small intestine | food particles move into blood |
| villi | give more space to absorb food |
| large intestine | holds undigested food |
| 22 feet | stretched out length of small intestine |
| duodenum | first part of small intestine |
| pharynx | throat |
| palate | roof of mouth |
| colon | large intestine |
| liver | makes bile |
| gall bladder | stores bile |
| bile | helps digest fat |
| good bacteria | live in intestines to prevent disease |
| gastric juices | fluid in stomach for digestion |