1. Tardigrade
  2. Question
  3. Biology
  4. The volume of blood pumped out by each ventricle per cardiac cycle is called (X) which is about (Y) . Select the correct option for X and Y .

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The volume of blood pumped out by each ventricle per cardiac cycle is called $(X)$ _____ which is about $(Y)$_____ . Select the correct option for $X$ and $Y$ .

NTA AbhyasNTA Abhyas 2020Body Fluids and Circulation

Solution:

The volume of blood pumped from the heart (left ventricle) into the systemic aorta in one minute is called the cardiac output. It is also called minute volume. It is calculated as the product of stroke volume (amount of blood pumped by left ventricle each time it contracts) and rate of heartbeat, i.e., Cardiac output $=$ Stroke volume $x$ Rate of heart beat $=70 \,ml \times 75\, \text{times / minute} = 5250\, ml / \text{minute}$ or $5.25\, litres / \text{minute}$.