Blood Vessels - Mind Map

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  • Created by: .Em.Reed.
  • Created on: 01-10-17 14:12
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  • Blood Vessels
    • Arteries
      • Thick muscular walls
      • Small passageways for blood
        • (internal lumen)
      • Carry blood away from the heart
      • Blood under high pressure
    • Veins
      • Carry blood to the heart
      • Thin walls
      • Larger internal lumen
      • Blood under low pressure
      • Valves prevent blood flowing backwards
    • Capillaries
      • Found in the muscles and lungs
      • Microscopic
        • One cell thick
      • Very low blood pressure
      • Where gas exchange takes place
        • Oxygen through the capillary wall into the tissues
        • Carbon dioxide passes from the tissues into the blood

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