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anatomy lesson 4

The Digestive System

mechanical digestion Breaking, crushing, and mashing of food. Ex. chewing
chemical digestion The process in which large molecules of food are broken down into smaller molecules so they can pass into the blood stream.
enzyme A chemical that the body uses to break down large molecules into smaller molecules.
esophagus A long tube that takes food from your mouth to your stomach.
stomach A muscular bag that crushes food and contains acids and enzymes for killing bacteria ad breaking down proteins.
small intestine A muscular tube where most chemical digestion takes place and most nutrients are absorbed.
large intestine Water and nutrients are absorbed here.
pancreas Makes fluids that break down every type of material found in foods: proteins, carbohydrates, and fats.
liver Makes and releases a mixture called bile that breaks up large fat droplets into very small fat droplets.
excretory system Eliminates cellular wastes from the body through the lungs, skin, kidneys, and digestive system.
kidneys Removes waste from the blood.
Created by: rippert



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