The aorta, a large blood vessel responsible for transporting oxygenated blood from the heart to the rest of the body, plays 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 ...

This is called pulmonary circulation. The left-hand side of the heart collects oxygenated blood from the heart and pumps it round the body. This is called systemic circulation. Oxygenated blood is ...

A team of scientists led by Northwestern Medicine investigators have uncovered new details about a deadly heart condition ...

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 ...

The human heart is a vital organ that pumps blood through the body. You probably don't even think about it, but your heart is always working — it beats about 100,000 times a day, which adds up ...