Zoology - Body Fluids and Circulation Question with Solution | TestHub

Cardiac output is defined as the amount of blood pumped by the heart in one minute. So, the amount of blood pumped by the heart is the stroke volume and the number of times the heart beats in one minute is the heart rate. Therefore according to the definition of cardiac output, it is the product of stroke volume and heart rate. Cardiac output= stroke volume*heart rate (in the question,$50\times 72=3600\mathrm{m}\mathrm{L}/\mathrm{m}\mathrm{i}\mathrm{n}$).