| A | B |
|---|
| ptyalin | enzyme in saliva that breaks down some starches |
| enzyme | chemical substance that helps control chemical reactions |
| esophagus | tube that carries food to the stomach |
| pertisalsis | waves of muscular contractions that move food through the digestive system |
| stomach | J- shped digestive organ that connects the esophagus to the small intestine |
| small intestine | digestive organ where most of digestion takes place |
| pancreas | organ that produces pancreatic juices and insulin |
| liver | organ that produces bile |
| pepsin | enzyme produced by the stomach that digests proteins |
| villus | fingerlike structure that lines the small intestine through which food is absorbed into the bloodstream |
| rectum | end of the large intestine |
| anus | opening at the end of the rectum through which solid wastes are eliminated |
| large intestine | organ in the digestive system in which water is absorbed and undigested food is stored |
