| A | B |
|---|
| alimentary canal | Another name for the digestive tract. |
| anus | The part that egests food from the body. |
| appendicitis | An infection of the appendix. |
| appendix | Small finger-like projection located near the large intestine. |
| bile | Breaks down fats into small pieces in the small intestine. |
| chemical digestion | Chemically changes complex food molecules into simpler molecules. |
| chyme | A thick soupy mixture of food in the stomach. |
| colon | Another name for the large intestine. |
| constipation | Disorder caused by feces remaining in the colon too long. |
| diarrhea | A digestive system disorder caused by too little water absorption. |
| esophagus | Tube that connects the mouth and the stomach. |
| feces | Undigested food. |
| gall bladder | Digestive system organ that stores bile. |
| gastric juice | Secrestion of the stomach that contains digestive enzymes. |
| hydrochloric acid | Stomach secretion that destroys bacteria. |
| large intestine | Absorbs water, vitamins, and minerals and stores feces in its lower end. |
| lipases | Enzymes that digest fats. |
| liver | Body organ that makes bile. |
| mechanical digestion | Process that physically breaks down food int smaller pieces. |
| muscus | A secretion of the digestive tract that is a slimy material. |
| oral cavity | Another name for the mouth. |
| pancreas | Digestive organ that secretes digestive enzymes into the small intestine. |
| pepsin | A digestive enzyme that begains the chemical digestion of protein. |
| peristalsis | Slow rhythmic muscular contractions of the alimentary canal. |
| ptyalin | An enzyme that starts the chemical digestion of starches. |
| rectum | The lower end of the large intestine that stores feces. |
| rennin | Chemical digestion of milk protein. |
| saliva | Moistens food making it easier to swallow. |
| salivary glands | Glands that secrete saliva into the mouth. |
| small intestine | Where most chemical digestion takes place. |
| stomach | A J-shaped muscular digestive organ. |
| ulcer | An open painful sore in the stomach lining. |
| villi | Tiny finger-like projections of the small intestine. |
