Question

Blood goes through the heart twice during each cycle is called as

• A. Double circulation
• B. Single circulation
• C. Triple circulation
• D. Quadruple circulation

Answer 1

Answer: (A)

Double circulation

Double circulationI is a type of circulatory system, where the heart pumps the blood twice to perform its function. The first pumping sends the blood to be circulated through the lungs, and the second pumping circulates the blood throughout the body. The right side of the heart accepts blood that has been circulated throughout the body and pumps it at a relatively low pressure to the lungs. In the lungs, the blood is replenished with oxygen. Once the blood has been completely circulated through the lungs, it returns to the heart. Arriving at the much larger left side of the heart, the blood is then pumped out to the entire body.

So, the correct answer is option A.