| A | B |
|---|
| villi | fingerlike projections covering the wall of the small intestine that increase the surface area for food absorption |
| anus | controls release of semisolid waste from the body in the form of feces |
| mechanical digestion | breakdown of food through chewing, mixing and churning |
| chemical digestion | occurs when enzymes and other chemicals break down large food molecules into smaller ones |
| digestion | mechanical and chemical breakdown of food into small molecules that cells can absorb and use |
| perstalsis | waves of muscular contractions that move food through the digestive tract |
| esophagus | muscular tube that moves food down to the stomach |
| chime (chyme) | liquid product of digestion |
| large intestine | main job is to absorb water from the undigested mass of food |
| stomach | muscular bag where food mechanical and chemical digestion take place |
| small intestine | where most digestion and absorption of food takes place |
| rectum | last section of the large intestine |
| gall bladder | secondary organ to the digestive system functions to store bile produces by the liver |
| epiglottis | covers the opening to the windpipe to prevent food from entering it, otherwise you would choke |
| mouth | begins to break down food into smaller pieces through mechanical digestion |
| saliva | starts the process of chemical digestion |
| liver | secondary organ of the digestive system that produces bile which is used to break up fat particles |
| pancreas | secondary organ to the digestive system that functions to produce digestive juices |
