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Digestion sysetm

Vocabulary uint 7

digestive tract the food tube open at both ends
peristalsis the movement of food along the food tube by muscles
esophagus the part of the food tube between the mouth and the stomach
mechanical the breaking down food by the teeth and tongue
saliva a liquid found in the mouth
enzyme a chemical substance that helps digest food
physical A change in the size or shape of something
gastric a liquid produced by the stomach
pepsin enzymes found in gastric juice
casein a milk protein
villi tiny finger like parts that stick out from the walls of the small inestine
Lacteals the body uses foods that are in the blood stream
Created by: ball.tim