The Heart and Circulation

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All about GCSE Biology, Section B3.2
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Mind Map by victoirespongecake21, updated more than 1 year ago
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Resource summary

The Heart and Circulation
  1. The Heart is mainly made up of muscle tissue
    1. An ARTERY is a blood vessel carrying blood AWAY from the heart.
      1. A vein is a blood vessel carrying blood towards the heart
        1. A capillary is a very small blood vessel, very thin to allow substances to move in and out
          1. It contains valves to make the blood flow throughout the chambers without backflow
            1. A double circulatory system is when blood travels through the heart twice as it flows through the body
              1. The difference between ARTERIES and VEINS is that....
                1. VEINS - Have a valve, thinner muscles and walls, carries detox blood
                  1. ARTERIES - Uses elastic pumps, the recoil keeps pressure high, carries ox blood
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