How many chambers does the heart have?

The movement of blood through the heart and body is called

These are tubes that carry blood back to the heart

You can keep your heart strong by

Which organ removes waste from blood

What parts act like doors that control blood flow in the heart?

With circulation, the heart provides your body with

The atria are the “upstairs” chambers of the heart and these parts are the “downstairs” chambers:

Which type of blood vessel carries blood away from the heart?

From which chamber of the heart does blood leave to go to the lungs?

Normal human pulse rate is _______________ beats per minute?

Blood flows in the tubular structures called

Which among these helps in blood clotting