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प्रश्न
With which of the following event the cardiac cycle starts?
पर्याय
Beginning of ventricular diastole
Auricular systole
Auricular diastole
Ventricular systole
MCQ
उत्तर
Auricular systole
Explanation:
Through the superior vena cava, inferior vena cava, and coronary sinus, deoxygenated blood enters the right atrium. Blood enters the right ventricle when the right atrium contracts. As a result, the cardiac cycle starts with auricular systole.
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