Fill in the Blanks HOW FOOD TRAVELS INSIDE YOUR BODYOnline version COMPLETE by JORGE V.T 1 Digestion begins in the mouth . Your teeth grind the food and your mixes it with from your . This mixture is called a . Next , the bolus passes down the and the and into the . It secretes substances called , which are mixed with the bolus and form a paste called . This is the end of the digestion process .