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Digestion sysetm
Vocabulary uint 7
| Question | Answer |
|---|---|
| digestive tract | the food tube open at both ends |
| peristalsis | the movement of food along the food tube by muscles |
| esophagus | the part of the food tube between the mouth and the stomach |
| mechanical | the breaking down food by the teeth and tongue |
| saliva | a liquid found in the mouth |
| enzyme | a chemical substance that helps digest food |
| physical | A change in the size or shape of something |
| gastric | a liquid produced by the stomach |
| pepsin | enzymes found in gastric juice |
| casein | a milk protein |
| villi | tiny finger like parts that stick out from the walls of the small inestine |
| Lacteals | the body uses foods that are in the blood stream |