| A | B |
|---|
| anus | the opening at the bottom of the rectum through which undigested material is released from the body |
| bile | a digestive juice produced in the liver and stored in the gall bladder; breaks down fats into smaller pieces in the stomach during the digestive process |
| chyme | name for the partially digested food in the stomach in the form of a thick, soupy liquid |
| digestive system | the organ system in which food is broken down into a form that the body cells can use |
| enzymes | chemicals that help break down food |
| esophagus | the muscular tube that connects the mouth to the stomach |
| gall bladder | a small pear-shaped organ in which bile from the liver is stored |
| large intestine | the organ that absorbs water and salts from undigested material |
| mucus | a slippery material produced by the digestive organs that forms a thick, protective coating inside the organs |
| peristalsis | a wavelike motion that moves food through the digestive system |
| ptyalin | an enzyme found in saliva that breaks starch into simple sugars |
| saliva | the watery liquid in the mouth that begins the chemical breakdown of food |
| small intestine | the long coiled organ where most digestion takes place |
| stomach | the muscular organ that stores food and helps digest it |
| villi | Looplike structures in the wall of the small intestine in which nutrients are passed from the small intestine into the blood |
