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2015-06-26T14:41:52+08:00

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The water inside the jar represents the blood that is pumped by the heart.

--Mizu
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2015-06-26T19:13:48+08:00
The water represents the blood. The straws represent the arteries and veins while the whole jar represents the heart. The heart pump model is just a representation of the true heart which is more complex. It demonstrates how the heart pump blood throughout the whole body specifically, the cells.
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