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Hello, today we are going to tell you about circulatory systems.

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The first thing that we have to know is what is blood and what does it carry.

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Blood is a liquid that travels through the blood vessels.

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Blood carries CO2, oxygen, nutrients and waste products.

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About the same we have.

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Blood alerts stop bleeding when we have a wound.

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Red blood cells that carry oxygen, CO2.

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White blood cells is used to protect from germs and parasites.

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What kind of blood vessels do we have?

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Arteries transport oxygen from the heart to the body cells.

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Veins carry blood with CO from the body to the heart.

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Capillaries connect veins with arteries.

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Goodbye! Thanks for watching!