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latagracos
latagracos latagracos
  • 29-04-2016
  • Biology
Answered

What causes the aortic semilunar valve to close?

Verified Answer :

oYOLOo
oYOLOo oYOLOo
  • 29-04-2016

When the atrioventricular valves open. 

This is when Ventricles are being filled with blood from the atrium.

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