Blood3
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Transcript of Blood3
![Page 1: Blood3](https://reader036.fdocuments.in/reader036/viewer/2022081821/54807d2e5806b5ae5e8b49c6/html5/thumbnails/1.jpg)
BLOOD CIRCULATION
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BLOOD
• Blood is a very important liquid.
• It carries oxygen and the substances from digestion to different parts of our body.
• The journey of the blood around our body is called circulation.
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• The circulatory system is responsible for blood circulation.
• It is made up of the heart and the blood vessels.
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THE HEART
• The heart is a organ.
• It pumps the blood around our body.
• Our heart is between the two lungs
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BLOOD VESSELS
• Blood circulates around our body inside blood vessels.
• There are three types of blood vessels: arteries,veins ,and capillaries.
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• Arteries: carry blood whih oxigen.
• Veins: collect blood with carbon dioxide.
• Capillaries: connect veins and arteries.
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BREATHING
• The respiratory system is made up of the following organs: nostrils, trachea, two bronchial tubes and two lungs.
• Our ribs protect our lungs.
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• Air enters our body through the nose and mouth.
• It passes through the nostrils.
• It goes down through the trachea and the bronchial tubes, and into the lungs.
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• Oxigen from the air passes through the walls of our lungs into our blood.
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• We make two movents: inhalation and exhalation.
• When we inhale, our lungs fill with air.
• When we exhale, the air leaves our lungs.
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Cristina and Sergio