Did you know that the beginning of the digestive tract begins in the mouth? *Chewing mechanically breaks down food. *Digestive enzymes are released in saliva. *Stomach and intestine functions are activated. Did you know that the immune system begins in the mouth? *Up to 80% of the immune system resides in the GI tract. *The mouth also provides a point of entry for bacteria and viruses to enter the respiratory system and bloodstream. *A healthy mouth can prevent infection. Did