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.
Digestion takes place whenever and wherever food comes into contact with digestive enzymes. Salivary glands at the base of the tongue secrete enzymes that begin the digestion of carbohydrates. Enzymes secreted by the lining of the stomach are involved in protein, fat and milk digestion.