NEETZoologyBody Fluids and Circulation
What is the normal cardiac output of a healthy individual?
Options
- A10 litres
- B5 litres
- C2 litres
- D7 litres
Correct answer
B. 5 litres
Step-by-step solution
This sequential event in the heart which is cyclically repeated is called the cardiac cycle and it consists of systole and diastole of both the atria and ventricles. As mentioned earlier, the heart beats 72 times per minute, i.e., that many cardiac cycles are performed per minute. From this it could be deduced that the duration of a cardiac cycle is 0.8 seconds. During a cardiac cycle, each ventricle pumps out approximately 70 mL of blood which is called the stroke volume. The stroke volume multiplied by the heart