| A | B |
|---|
| mechanical digestion | the process of chewing, mashing |
| chemical digestion | changing foods into liquids |
| enzymes | proteins that speed up the breakdown of complex substances |
| alimentary canal | passageway of food |
| saliva | watery substance that moistens food |
| salivary gland | gland that produces saliva |
| amylase | enzyme found in saliva that breaksdown complex carbs. |
| bolus | ball of food |
| deglutination | the act of swallowing |
| epiglottis | trapdoor that keeps food from entering trachea |
| esophagus | food tube |
| peristalsis | wavelike contractions that move food |
| sphincer muscle | muscle that opens and closes |
| stomach | saclike organ of digestion |
| hydrochloric acid | one of the stomach acids |
| chyme | partially digested food |
| small intestine | 22 ft. coiled organ used for digestion and absorption of nutrients |
| duodenum | first part of small intestine |
| pancreas | secretes enzymes that breakdown proteins |
| bile | a thick yellow-green fluid released by the liver to help absorb fat |
| villi | fingerlike projections in small intestine that allow for absorption of nutrients |
| liver | organ that secretes bile, filters blood, and stores carbohydrates |
| large intestine | 5 ft. long tube that reabsorbs water from digestion |
| feces | stool, or solid waste |
| rectum | stores feces |
| anus | muscle at the end of the rectum |
