"Short version," says Chris, "when people breathe, we get oxygen from the air, which is something our bodies need to have all over the place in order to keep working, and we have blood to take the oxygen from the lungs all the way around to everywhere else, and the heart is the thing that pumps the blood to keep it going around, and the thumping is the sound it makes when it does that."
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timeasmymeasure
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Date: 2014-04-19 05:48 pm (UTC)"Short version," says Chris, "when people breathe, we get oxygen from the air, which is something our bodies need to have all over the place in order to keep working, and we have blood to take the oxygen from the lungs all the way around to everywhere else, and the heart is the thing that pumps the blood to keep it going around, and the thumping is the sound it makes when it does that."