ANATOMY

Detailed explanation-1: -How long does it take blood to circulate through the body? On average, it takes about 45 seconds for blood to circulate from the heart, all around the body, and back to the heart again. An average adult’s heart beats more than 100, 000 times a day.

Detailed explanation-2: -Normal Output. It’s different for different people, depending on their size. Usually, an adult heart pumps about 5 liters of blood per minute at rest. But when you run or exercise, your heart may pump 3-4 times that much to make sure your body gets enough oxygen and fuel.

Detailed explanation-3: -Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body’s tissues through the aorta.