digestive system. digestive system the body system that converts food into usable energy
TRANSCRIPT
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Digestive System
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Digestive system
•The body system that converts food into usable energy
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The Process
•The mouth and teeth•The stomach and the small intestine•The liver, gallbladder, and pancreas
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Mouth and Teeth
•Digestion: The process of changing food into material the body can use
•Digestive enzymes: Speed up the break down of food
•Saliva: A fluid made by the salivary glands that moistens and softens food
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The stomach and small intestine•Esophagus: A muscular tube that
pushes food down from the mouth to the stomach
•Small intestine: A coiled, tubelike organ that is about 20 feet long where the nutrients are separated from the bulk of the food
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Liver, Gallbladder, and Pancreas•Liver: Body's largest internal organ, it
produces bile, a substance that helps break down fats and gets rid of toxins from body
•Gallbladder: Stores the bile and releases it to small intestine when needed
•Pancreas: Makes additional digestive enzymes
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Excretory System
•Your body’s waste removal system
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Excretory System•Excretion: The process of removing wastes
from the body•Colon: Food particles that cannot be digested
move from the small intestine to here (aka large intestine)
•Cecum: A pouch that joins the small and large intestine
•Kidneys: Organs that filter water and dissolved wastes from the blood and help maintain proper levels of water and salts in the body