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CARDIOVASCULAR SYSTEM PHYSIOLOGY

1

Question

S wave of ECG coincides with which of the following event in the cardiac cycle ?

  • 1

    Closure of aortic valve  

  • 2

    Opening of aortic valve  

  • 3

    Closure of A-V valve  

  • 4

    Opening of A-V valve  
OPTION 2
0
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