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05 The Heart

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05 The Heart

  1. 1. The Heart
  2. 2. The heart beats lub-dup, lub-dup.. <ul><li>With each beat it pumps a third of a glass of blood (70 ml) around your body. </li></ul><ul><li>It needs to function far longer and more reliably than any man-made pump since it beats two billion times non-stop through an average lifetime. </li></ul>
  3. 3. The passage of blood
  4. 4. shade in the parts of the heart that contain blood with a lot of oxygen. Draw in arrows to show how the blood flows through the heart. artery to the body artery to lung heart valve left atrium main vein from the body right ventricle vein from lung
  5. 5. Questions <ul><li>What type of blood vessel always leaves a ventricle? </li></ul><ul><li>What type of vessel always goes to an atrium? </li></ul><ul><li>What is the job of a heart valve? </li></ul><ul><li>Think of some blood flowing back to the heart from your legs. Write down all the parts of the body it goes through, in order, until it goes out of the artery to the body again. The first two parts are: leg veins, right atrium. </li></ul>

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