The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, ...

Your circulatory system is made up of three parts: the heart, blood vessels and the blood itself. Your heart keeps all the blood in your circulatory system flowing. The blood travels through a ...

Veins between two capillary networks are portal systems. Closed circulatory system, but fluid constituents of blood leak out of capillaries and return to the heart by the second component of the ...

In this video, learn how blood moves around the body through the heart, arteries and more. Come along children, we’ve come to the hospital to learn how blood is moved around the body in the ...