| A | B |
| digestion | process by which the body changes food so it can be used to supply energy |
| esophagus | long tube that connects the mouth and stomach |
| salivary glands | located in the mouth; help begin digestion |
| saliva | secretion from a gland that helps make food soft |
| cardiac opening | found at the beginning of the stomach |
| pyloric opening | found at the end of the stomach |
| gall bladder | stores bile from the liver |
| liver | 4 lobed organ which stores minerals and vitamins |
| duodenum | first part of the small intestine |
| tongue | located in the mouth - helps in swallowing |
| pancreas | produces juices that help digestion |
| rectum | stores solid wastes |
| epiglottis | found at the back of the throat - covers the windpipe |
| assimilate | means actually used |
| villi | tiny vessels of projections that line the small intestine |
| small intestine | about 27 feet long - receives digested food from the stomach |
| large intestine | receives undigested food from the small intestine |
| appendix | located at the end of the large intestine - has no known use |
| ascending, transverse, and descending colon | parts of the large intestine |
| stomach | organ which holds food for about 4 hours |
| peristalsis | involuntary contraction of the walls of the intestines that force the contents onward |