MEDizzy
MEDizzy
Dr. Faisal Hassan
Dr. Faisal Hassanalmost 5 years ago

During Atrial systole of the cardiac cycle: a. The firs heart sound occurs. b. Over 70% of ventricular filling occurs. c.The AV valves are closed. d. The aortic valve is opened. e. The second heart sound occurs.

7
Top rated comment
almost 5 years ago

I think it is E

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