The Digestive System B2.3

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  • Created by: Revise15
  • Created on: 19-05-16 19:07
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  • Liver
    • Gall Bladder
      • Bile is stored and secreted into the small intestine
    • Pancreas
      • secretes alkali protease, carbohydrase and lipase enzymes into the duodenum
    • Bile is produced
  • Small intestine
    • Large intestine
      • collon
      • absorbs water back from digested food by osmosis into the blood
        • leaving waste material (faeces) behind
    • Gall Bladder
      • Bile is stored and secreted into the small intestine
    • Duodenum
      • ileum
      • contains enzymes to further break down food
    • increased surface area for absorption of nutrients into the blood
    • layers of ruck up tissue containing villi surrounded by capillaries
    • pushes food along by peristalsis
    • Bile binds food together
      • bile neutralizes acid providing the necessary the alkaline conditions
      • emulsifies fats providing a larger surface area for lipase enzymes to break down the lipids (fats)
    • breaking down of large insoluble molecules into smaller soluble molecules do that the nutrients can diffuse into the blood using finger shaped protrusions called villi
  • rectum
    • anus
    • collon

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