The systemic circulation is a major portion of the circulatory system. The network of veins, arteries and blood vessels transports oxygenated blood from the heart, delivers oxygen and nutrients to ...

The cardiovascular system is made up of your heart and your blood vessels. This heart anatomy diagram shows that blood flows from the right atrium into the right ventricle and out to the lungs ...

According to the Cleveland Clinic, if you laid out all of the blood vessels in the circulatory system, they would be about 60,000 miles long! Because arteries are moving blood being pumped out by ...

Save guides, add subjects and pick up where you left off with your BBC account. Narrator: Blood gets around our bodies through a system of blood vessels. To picture the blood vessels, imagine a ...