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what is the function of the circulatory system?

The main organ is the heart :)
what organ did the syringe represent?how did it work?
I'm not sure if it represents the chambers of the heart or not. But I think syringe represents the chambers.
uuhhh....can u give me some more answers?


The circulatory system transports oxygen and nutrients (which is in the blood and is pumped by the heart) to the different parts of the body through the blood vessels (arteries,veins and capillaries).
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Circulates blood throughout the body ;)
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