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The Digestive System

Mouth. Mechanical digestion - teethChemical digestion

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The Digestive System

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    1. The Digestive System

    2. Mouth Mechanical digestion - teeth Chemical digestion – saliva 11 cm long

    3. Esophagus Muscular tube Peristalsis About 25 cm long

    4. Stomach Strong muscles Digestive juices Chyme About 22 cm long

    5. Small Intestine Most digestion occurs here Molecules pass out through villi into blood About 690 cm long

    6. Pancreas Accessory organ Food does not go through the pancreas Produces chemicals to help break down macromolecules

    7. Liver Accessory organ Has many jobs Produces bile to help digest fat

    8. Gall Bladder Accessory organ Stores bile Helps digest fat

    9. Large Intestine (Colon) Absorbs extra nutrients & water Forms wastes into solid feces About 152 cm long

    10. Rectum Stores wastes About 14 cm long

    11. Anus Muscle that controls when wastes leaves the body

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