Bhumika2007
Bhumika2007 Bhumika2007
  • 12-05-2020
  • Health
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What does the phrase 'closed system' mean as it relates to the cardiovascular system? ​

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cp113501
cp113501 cp113501
  • 12-05-2020

It means that the blood never leaves blood vessels ever.  The blood never comes toward or touches the rest of the cells.

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