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6.3 Digestive
Digestive System
| Question | Answer |
|---|---|
| Small Intestine | Most chemical digestion and absorption into the bloodstream |
| Large Intestine | Water and mineral absorption |
| Peristalsis | Rhythmic contractions that push food through GI tract. |
| Villi | Increase surface area for absorption in the small intestine. |
| HCl | Stomach acid, gives correct pH for enzymes, helps with breakdown, kills bacteria. |
| Saliva | Contains starch enzymes, moistens food for travel |
| Pancreas | Makes enzymes, controls blood sugar. |
| Epiglottis | Protects trachea, prevents choking |