| A | B |
|---|
| Colon | the large intestine |
| Esophagus | the long tube that connects the throat to the stomach |
| Peristalsis | the wavelike muscle contractions that push food through the digestive system |
| Digestion | the process by which food is broken down into molecules small enough to be absorbed by the body |
| Absorption | the process by which nutrient molecules are moved into the bloodstream |
| Bolus | the soft mass of food created by saliva in the mouth |
| Epiglottis | the flap of cartilage that folds over the windpipe during shallowing |
| Chyme | the soapy acidic mixture created in the stomach |
| Villi | the tiny projections that line the small intestine |
| Liver | accessory organ that makes bile |
| Gallbladder | accessory organ that stores bile |
| Pancreas | accessory organ that produces insulin |
| Nephron | a tiny filtering device in the kidney |
| Ureter | the tube through which urine flows from the kidney to the bladder |
| Urethra | the tube that carries urine from the bladder to the outside of the body |
| Urea | a toxin chemical produced in all cells as protein is broken down |
| Bladder | store urin until it is released from the body |
