| A | B |
| Digestive System | all of teh organs and activities involved in the ingestion, digestion and absorption of food |
| Organs | part of an organism that performs a specific function |
| Esophagus | he muscular tube that connects the mouth to the stomach |
| Peristalsis | the wave-like muscular contractoins that move food through the tubular organs of the digestive system |
| Stomach | an enlarged and muscular saclike organ that bathes the food in acid |
| Small Intestine | the narrow, winding, upper part of the intestine where digetion is completed and nutrients are absorbed by the blood |
| Large Intestine | the long, wide tube that food goes through after it goes through the small intestine |
| Enzyme | chemical produced by the body to aid in digestion |
| Pancreas | an enzyme-producing gland located below the stomach and above the intestines |
| Gall Bladder | small saclike organ that stores the bile produced by the liver |
| Liver | organ that produces bile |
| Bile | a digestive fluid that aids in the digestion of fats |
| Saliva | a clear liquid secreted into the ,outh by the salivary glands that begins the digestion of starches |
| Mechanical Digestion | the process by which food is physically changed as through chewing |
| Chemical Digestion | the process by which food is exposed to chemicals that convert food into substances that can be absorbed by the body |
| Diffusion | the process by which materials are transported through an area |
| Membrane | a thin sheet of tissue that covers,lines or connects organs or cells of animals |
| Permeable | allowing (especially liquids) to pass through |
| Semi-permeable | allowing only certain materials to pass through |