Los Olivos 3rd Course NS Unit Diet, digestion and excretion
What happens to the food in the mouth?
The mouth has teeth that break the food into small pieces and a tongue that mixes the food with saliva so it's easy to swallow.
What happens to the food in the esophagus?
Food goes down this long tube to the stomach.
What happens to food in the stomach?
Gastric juices break down the food for about 3 hours and turn it into a thick liquid that goes to the small intestine.