Show How Does Blood Flow Through Your BodyAs the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic tubes that carry blood to every part of the body. Blood is essential
There are three main types of blood vesselsArteries The arteries (red) carry oxygen and nutrients away
from your heart, to your body's tissues.
Capillaries
Veins
This vast system of blood vessels - arteries, veins, and capillaries - is over 60,000 miles long. That's long enough to go around the world more than twice! Blood flows continuously through your body's blood vessels. Your heart is the pump that makes it all possible.
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How long does it take a drop of blood to do a
full circuit of the system? Diana - I think the answer is going to be about a minute for most people. You have about 5 litres of blood in your body (at least most people do)
and the average heart pumps about 70 ml of blood out with each beat. The next bit is going to depend on your resting heart rate. I think most people have an average resting heart rate of about 70 beats a minute (somewhere around there). So, if you multiply the amount of blood that the heart can pump by the number of beats in a minute, you actually get about 4.9 litres of blood, which is almost your whole body's worth of blood. So, in a minute, you will pump the entire blood volume around your
body.
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