| A | B |
|---|
| digestive system | organ system that breaks down food so that body cells can use it |
| saliva | liquid in mouth that starts to break down food |
| enzymes | chemicals that help break down food |
| esophagus | muscular tube that connects mouth to stomach |
| Heimlich maneuver | first aid for choking to remove food from windpipe |
| peristalsis | wavelike motion that moves food through the digestive system |
| stomach | muscular organ that stores food and helps digest it |
| mucus | slippery material that protects insides of digestive organs |
| small intestine | long, coiled organ where most digestion takes place |
| villi | finger-like structures in wall of small intestine that absorb nutrients into bloodstream |
| liver | one of its over 500 functions is to make bile for digestion |
| bile | breaks down fats into smaller pieces |
| gall bladder | pear-shaped organ that works with the liver; stores bile and supplies it to the small intestine as needed |
| pancreas | produces insulin to help body use and store sugars |
| insulin | protein that causes body to use sugars |
| large intestine | absorbs water and salts from undigested material |
| anus | opening through which undigested materials pass out of body |
| ptyalin | enzyme in saliva that breaks down starch into simple sugar |
| chyme | soupy liquid that food becomes in the stomach |
| pyloric valve | the valve between the stomach and the small intestine |
| incisor | type of tooth used for cutting and biting |
| canine | sharp tooth used for tearing food |
| premolar | type of tooth used to chew and grind |
| molar | back tooth for chewing and grinding |
