G4 Science - Digestion
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Created by:
rvalderama Plus on September 1, 2011
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20 terms
Terms | Definitions |
|---|---|
 Mouth | it is where the digestion of food starts |
| Esophagus | long muscular tube extending from the back of the mouth to the stomach |
| Stomach | bean shaped organ where food is temporarily stored |
| Small Intestine | it is where the greater part of digestion takes place |
| Large Intestine | it is where undigested food is stored temporarily |
| Rectum | the end of large intestines where feces are finally squeezed and then leaves the body through the anus |
| Liver | the larged organ inside the body that secretes bile. |
| Bile | a yellowish-green fluid that breaks up fats |
| Gall Bladder | A small muscular sac that stores bile |
| Pancreas | An organ that lies behind the stomach that produces pancreatic juice |
| Pancreatic Juice | it helps in the final breakdown of carbohydrates, fats and proteins |
| Salivary Glands | It secretes saliva |
| Saliva | contains ptyalin that changes starch into sugar |
| Enzymes | Chemical juices that speed up the digestion of food in the body |
| Bolus | A thick paste-like combination of chewed food |
| Chyme | Partially digested food |
| Villi | Finger-like projections in the small intestines |
| Peristalsis | waves of muscle contraction |
| Mucus | lubricates and protects the stomach from physical damage |
| Hidrochloric Acid | kills the bacteria that are absorbed by the stomach along with food. (also called stomach acid) |
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