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WM Biology Dig Sys
vocab from chapter 35 section 1
| Question | Answer |
|---|---|
| amylase | an digestive enzyme in saliva. |
| esophagus | a muscular tube that connects your mouth to your stomach |
| peristalsis | a series of involuntary smooth muscle contractions along the walls of the digestive tract. |
| epiglottis | the flap of cartilage that closes over the opening to the respitory tract as you swallow. |
| stomach | a muscular pouchlike enlargement of the digestive tract. |
| pepsin | an enzyme that begins the chemical digestion of proties in food. |
| small intestine | a muscular tube about 6 m long. |
| pancreas | a soft, flattened gland that secretes both digestive enzymes and hormones. |
| liver | a large, complex, organ that has many functions. |
| bile | a chemical substance that helps break down fats. |
| gallbladder | bile is stored in this small organ. |
| villus | a single projection on the lining of the small intestine that functions in the absorbtion of digested food. |
| large intestine | a muscular tube that is also called the colon. |
| rectum | the last part of thye digestive system. |
| mechanical digestion | when food is broken down into smaller pieces by the action of muscles or teeth. |
| chemical digestion | When food particles are broken down into smaller, more absorbable peices by the action of digestive enzymes. |
Created by:
TBrylewski
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