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Blood 1

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Published in: Health & Medicine, Business

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Transcript

  • 1. BLOOD CIRCULATION.
  • 2. BLOOD • Blood is a very important liquid. • It carries oxygen and the subtances from digestion to different parts of our body. • The journey of our blood around the body is called circulation.
  • 3. • The circuculatory system is responsible for blood circulation. It is made up of the heart and the blood vessels.
  • 4. THE HEART • The heart is an organ. • It pumps the blood around our body. • Our heart is between the two lungs.
  • 5. BLOOD VESSELS • BLOOD CIRCULATES AROUND OUR BODY INSIDE VESSELS. • THREE TYPES OF BLOOD VESSEELS: ARTERIES, VEINS AND CAPILLARIES.
  • 6. - Arteries carry blood with oxygen. - Veins collect blood with carbon dioxide. - Capillaries connect veins and arteries.
  • 7. BREATHING • The respiratory system is made up of the following organs: nostrils, trachea , two bronchial tubes and two lungs. • The ribs protect our lungs.
  • 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. • Oxygen from the air passes through the walls of our lungs into our blood. • We make two movements: inhalation and exhalation.
  • 10. • When we inhale , our lungs fill with air. • When we exhale , the air leaves our lungs.