Heart is the pumping chamber. It pumps the blood into aorta which gives rise to several level of branching to terminate into capillaries. (Capillaries are the smallest amongst all the blood vessels). read more
Arteries undergo the highest blood pressure, so the Aorta, undergoing extreme measures of blood pressure, strongly pumps out blood to the entire body. Here is where we get into it. As blood is flowing through various arteries (and veins going back to the heart), they go through capillaries, where gas-exchange occurs. read more
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. read more