| A | B |
| digestion | the process by which your body breaks down food into small nutrient molecules |
| absorption | the process by which nutrient molecules pass through the wall of your digestive system into your blood |
| saliva | the fluid released when your mouth waters |
| enzyme | proteins that speed up chemical reactions in the body |
| epiglottis | a flap of tissue that seals off the wind-pipe, preventing food from entering |
| esophagus | a muscular tube that connects the mouth to the stomach |
| mucus | a thick, slippery substance that makes food easier to swallow and move along |
| peristalsis | involuntary waves of muscle contraction that move food forward in the esophagus |
| stomach | a J-shaped muscular pouch located in the abdomen |