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LCE SCIENCE
Ch 2 : Integrating Health Sec 2: Healthy Eating Sec 3 : The Digestive Process
| Term | Definition |
|---|---|
| Food Guide Pyramid | a diagram that classifies foods into 6 groups to help people plan a healthy diet |
| Percent Daily Value | a value that shows how the nutritional content of one serving of food fits into the diet of a person who consumes 2,000 Calories a day |
| Dietary Reference Intakes (DRIs) | guidelines that show the amounts of nutrients needed everyday |
| 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 the mouth waters that plays and important role in both mechanical and chemical digestion |
| enzyme | a protein 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 connects the mouth to the stomach |
| mucus | a thick, slippery 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, muscular pouch located in the abdomen |
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