Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70ml. Now, to get the cardiac output, we have to multiply (i)__ with the normal heart rate of (ii)__ /min and we get (iii)__ ml/min. This means that in one minute, each ventricle of a normal heart pumps about (iv)__ litres of blood out.
A(i) Stroke volume, (ii) 72, (iii) 5,040, (iv) 5
B(i) Total volume, (ii) 82, (iii)8,200, (iv) 8
C(i) Volume of the heart, (ii) 72,(iii)3,720, (iv) 3
D(i) Volume of the ventricles,(ii) 72, (iii)2,600,(iv) 2