Multiple Choice
A doctor puts his stethoscope on a patient's chest over the location of the heart and hears an abnormal swishing sound. Which of the following conditions is the best diagnosis for the patient's condition?
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18. The Heart
Cardiac Cycle
Back18. The Heart
Cardiac Cycle
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- Multiple Choice
If the pressure in the ventricles is higher than in the atria, which of the following statements must be true?
I. The atrioventricular valves are closed.
II. The semilunar valves are open.
III. The ventricles are in systole.
1350views4rank1comments - Multiple ChoiceAt what point in the cardiac cycle does the semilunar valve open?468views