| A | B |
|---|
| small intestine | the part of the digestive system in which most chemical digestion takes place |
| bile | a substance produced by the liver that breaks up fat particles |
| liver | the largest orgin in the body |
| pancreas | a triangular organ that lies between the stomach and first part of the small intestine |
| gall bladder | the organ that sores bile after its produced by the liver |
| villus | tiny finger shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed |
| large initestine | the last sectionof the digestive system, where water is absorbedinto the bloodstream and the remaining material is eliminated from the body |
| rectum | the end of the large intestine where waste material is compressed into a solid form before being eliminated |
| anus | a muscular opening at the end of the rectum through which waste material is eliminated from the body |
| digestioin | the process by which the body breaks down food |
| absorption | the process by which nutrient molecules pass through the wall of the digestive system into the blood |
| saliva | the fluid released when the mouth waters that plays an important role in food digestion |
| enzyme | a proteen that speeds up chemical reactions in the body |
| epiglottis | a flap of tissue that seals off the windpipe and prevents food from entering |
| esophagus | a muscular tube that conects the mouth to the stomach |
| mucus | a thick slipery substance produced by the body |
| peristalsis | involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system |
| stomach | a j shaped muscualar pouch located in the abdomen |
