| A | B |
| villi | fingerlike projections that line the small intestine |
| stomach | muscular bag-like organ that connects the esophagus to the small intestine |
| anus | opening at the end of the rectum through which solid wastes are eliminated |
| large intestine | organ in which water is reabsorbed and undigested waste matter is stored |
| liver | organ that produces bile |
| pancreas | organ that produces digestive juices and insulin |
| amino acid | building block of a protein |
| rectum | last section of the large intestine where feces are stored |
| ptyalin | enzyme found in saliva that helps to break down starches into sugars |
| salivary glands | glands in the mouth that produce saliva |
| bile | a substance that helps to break up large fat molecules, made in the liver |
| molars | teeth used for grinding and crushing food |
| canines | eye teeth used to tear and shred food |
| appendix | small finger shaped organ with no definite function, but may assist the body in resisting pathogens |
| gallbladder | small organ that assists the digestive process by storing bile |
| digestion | the process of breaking food into nutrients |
| esophagus | tube that connectsthe pharynx and stomach |
| nutrient | usable portion of food |
| peristalsis | waves of muscular contrations that move food through the digestive tract |
| mechanical digestion | physical action of breaking food down into smaller pieces |