Family Guy - Season 12 Episode 3 - Brian's Death - Duration: 2:44. GamesAddict2010 1,331,537 views
Breaking Down Digestion. The digestion process is a combination of chemical and mechanical digestion. Chemical digestion breaks down food via a chemical change, in which the digestive juices and enzymes break down food into components small enough to enter the GI tract, the blood cells or the lymph cells.
Chemical digestion is the process through which the body of a mammal reduces food to a size where the nutrients that it contains can be absorbed into the bloodstream. The process begins in the mouth, continues in the stomach and ends when the digested particles move through the small intestine for absorption. Proteins in the mouth, stomach and intestine called enzymes are the primary facilitators of chemical digestion. In the mouth, chemical digestion begins when the food enters and encounters saliva and the enzymes that it contains.