Vivlife
Vivlife Vivlife
  • 11-02-2016
  • Health
contestada

Why doesn't blood ever flow the "wrong" way?

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milliehart25
milliehart25 milliehart25
  • 11-02-2016
Because it is programmed to go to where it is supposed to go. I believe it is programmed to go to the heart.
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Аноним Аноним
  • 11-02-2016
The cells Basically communicate with each other to keep your blood moving the right place. Who assigns this job? Or who is the boss? It is the nucleus.
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