| A | B |
|---|
| digestion | processes that break down food |
| extracellular digestion | digestion outside the cells |
| intracelluar digestion | digestion in the cells |
| ingestion | the porcess of taking food into the digestive tract |
| saliva | a watery secretion containing digestive enzymes that begin chemical digestion |
| epiglottis | trapdoor like tissue that normally prevents food and liquids from entering the trachea |
| peristalsis | a process in whic wavelike contractions of the muscles of the esophagus move food to the stomach |
| salivary amylase | enzyme that begins carbohydrate digestion in the mouth |
| gastrin | a hormone that enters the bloodstream when stimulated by certain cells when food enters the stomach |
| pepsin | active protein digesting enzyme in stomach |
| pepsinogen | an active form that secretes stomach gland cells |
| tryspin | intestinal enzyme that breaks peptide bonds, producing amino acids from polypeptides |
| bile | a substance secreted by the liver and stored in the gallbladder |
| lipase | splits fats into fatty acids and glycerol |
| villi | fingerlike projections that increase the surface area of intestinal lining |
| capillaries | tiny, thin-walled blood vessels that serve as entry points to the bloodstream |
