Digestive process from mouth to anus
Excretion Following Food from Mouth to Anus To understand how our food is digested in the digestive system, it might be very useful to follow our food along its normal path, starting from the mouth. Your mouth starts to water. The salivary glands in your mouth are triggered to start producing saliva, a compound that will aid in the digestion of the meal. As food enters your mouth, your teeth begin mechanically breaking down the food into small and smaller pieces.