steyenithaP7eachra steyenithaP7eachra
  • 01-06-2017
  • Health
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When the heart contracts, during the ______ phase, blood pressure increases; when the heart relaxes, during the ______ phase, blood pressure decreases?

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Sukriti123
Sukriti123 Sukriti123
  • 03-06-2017
Pumping, releases
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