Question

What is the total diastolic time of the ventricle in cardiac cycle?
A. 0.30 second
B. 0.40 second
C. 0.50 second
D. 0.10 second

Answer 1

The cardiac cycle is the mechanism of the human heart which starts from the ending of one heartbeat to the beginning of the next heartbeat. The cardiac cycle has two periods- one period is during which the heart muscle relaxes and another is which refills with blood also known as diastole. The duration of this period where heart muscles refill with blood is known as diastolic time. Normally for a healthy human heart, diastole is less than a second which means the rate of heart beat is 75 beats per minute.

Complete Answer:
- Cardiovascular cycle is the succession of occasions that occurs during one heartbeat. The span of one heart cycle is 0.8 sec. It is partitioned into two stages, specifically diastole and systole.
- During systole, constriction of the ventricle happens and blood leaves the heart. During diastole, the heart is loose and is loaded up with blood. The complete systolic and diastolic season of the atrial cycle is 0.1 second and 0.7 seconds individually. So also, the complete systolic and diastolic season of the ventricle in the cardiovascular cycle is 0.3 seconds and 0.5 seconds respectively.
From the above information, we can conclude that the total diastolic time of the ventricle in the cardiac cycle is 0.5 seconds.

Thus, the correct option is C.

Note: The cardiovascular cycle requires 0.3 sec in ventricular systole, siphoning blood to all body frameworks from the two ventricles and 0.5 sec in diastole (enlargement), topping off the four offices of the heart, for a sum of 0.8 sec to finish the cycle.