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13483197712NutrientsSubstances in food that your body needs to grow, to repair itself, and to supply you with energy0
13483201169DigestionBreakdown of food substances into simpler forms that can be absorbed and used1
13483210529Alimentary Canaldigestive tube that extends from the mouth to the anus2
13483210530IngestionIntake of food3
13483210531Propulsionthe action of driving or pushing forward.4
13483212491Mechanical DigestionPhysical breakdown of large pieces of food into smaller pieces5
13483212492Chemical DigestionProcess by which enzymes break down food into small molecules that the body can use6
13483214493PeristalsisInvoluntary waves of muscle contraction that keep food moving along in one direction through the digestive system.7
13483214494Segmentationthe division of the body of an organism into a series of similar parts8
13483216809EnzymesCatalysts for chemical reactions in living things9
13483216810Defecationelimination of feces10
13483216811Fecepoop11
13483219215Gastric PitsGastric glands that release secretions into the stomach12
13483219216ChymePartially digested, semiliquid food mixed with digestive enzymes and acids in the stomach.13
13483219217Masticationchewing14
13483221654Salivary AmylaseEnzyme in saliva that breaks down starch15
13483221655Emulsificationphysical process of breaking up large fat globules into smaller globules, thereby increasing the surface area that enzymes can use to digest the fat16
13483224734Plicae Circularesfolds of the small intestine wall17
13483224735VilliFingerlike extensions of the intestinal mucosa that increase the surface area for absorption18
13483224736Microvilliprojections that increase the cell's surface area19
13483226722BileA substance produced by the liver that breaks up fat particles.20

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