Blood 10

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Blood 10

  1. 1. BLOOD CIRCULATION
  2. 2. BLOOD • Blood is a very important liquid. • It carries oxygen and the subtances from digestion to different parts of our body. • The blood journey around our body is called circulation.
  3. 3. • The circulatory system is responsible for blood circulation. It is made up of the heart and the blood vessels.
  4. 4. THE HEART • The heart is an organ. • It pumps the blood around our body. • Our heart is between the two lungs.
  5. 5. BLOOD VESSELS • Blood circulates around our body inside blood vessels. • There types of blood vessels: arteries, veins and capillaries.
  6. 6. • Arteries carry blood with oxygen. • Veins collect blood with carbon dioxide. • Capillaries connect veins and arteries.
  7. 7. BREATHING • The respiratory system is made up of the following organs: nostrils, trachea, two bronchial tubes and two lungs. • Our ribs protect our lungs.
  8. 8. • Air enters our body through the nose and mouth. • It passes through the nostrils. • It goes down through the trachea, the bronchial tubes, and into the lungs.
  9. 9. • Oxygen from the air passes through the walls of our lungs into our blood.
  10. 10. • We make two movements; inhalation and exhalation. • When we inhale, our lungs fill with air. • When we exhale, air leaves our lungs.

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