ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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About how long does it take for blood to circulate the whole body?
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3 minutes
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1 hour
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20 seconds
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12 hours
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Explanation:
Detailed explanation-1: -Your heart pumps blood around your body for 22 hours of the day. It takes around 20 seconds for a red blood cell to travel around the body.
Detailed explanation-2: -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-3: -Did you know? In the average person, the heart beats about 2, 500, 000, 000 times during a lifetime. Amazingly, it only takes about 20 seconds for one red blood cell to go round the whole body. Red blood cells last about 4 months before your body makes new ones.
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