its functions begin when food is taken
the function of the mouth is to use the salivary glands to shoot out the enzymes and break down food and the teeth are used to break down food using the teeth is an example of â¦ mechanical digestion and the enzymes are an example of chemical digestion. because u put the food in the the mouth to begin with, and the enzymes in the mouth (amalyse) break down large food molecules wich begin the digestion process.