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| Can tell me about arteries? | |
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| Arteries carry blood away from the heart. They are kind of like veins | |
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| What does a pacemaker do? | |
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| A pacemaker adjusts the heart rate according the the bodies oxygen needs | |
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| Can you tell me a ventricle is?> | |
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| It is the lower chamber that pumps blood out of the heart | |
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