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Digestive Sytsem
11/28/11
| Question | Answer |
|---|---|
| Chemical Digestion | when chemical reactions occur that break down large molecules of food into smaller ones |
| Mechanical digestion | takes place when food is chewed, mixed, and churned |
| Digestion is..... | the process that breaks down food into small molecules so that they can be absorbed and moved into the blood |
| mouth | where food is chewed and saliva(from salivary glands) breaks down starch and sugar |
| esophagus | a long tube that allows food to pass through it, no digestion happens while in the esophagus |
| stomach | food is mixed with peristalsis and food is mixed with enzymes and digestive solutions such as hydrochloric acid, mucus, and "soup" called chyme; proteins are digested |
| small intestine | most digestion; finger like projections called villi increases the surface area |
| pancreas | helps neutralize acid, helps lower blood sugar |
| gall Bladder | stores excess bile |
| liver | has bile which breaks down fat molecules |
| large intestine (colon) | undigested material; absorbs extra nutrients and water; from a liquid to a solid; the good bacteria produces vitamin k |
| rectum | stores the solid wastes until it is released |
| anus | controls when wastes leaves the body |
Created by:
pianokid1
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