Systemic veins. The systemic circuit carries deoxygenated blood from the rest of the body back to your heart, where it then enters the pulmonary circuit for oxygen.

Both arteries and veins are types of blood vessels in the cardiovascular system. An artery carries blood away from the heart, and a vein carries blood back to the heart. Blood vessels are ...

Reminder: Unlike all other arteries and veins, the pulmonary artery carries deoxygenated blood and the pulmonary vein carries oxygenated blood. Back to top Systemic circuit ...

The capillaries are the smallest type of blood vessel, and provide the bridge between the arteries and veins. Find out all about the blood, lungs and blood vessels that make up the circulatory system.

The Fontan operation, which places the systemic and pulmonary circulations in series and is driven by a single ventricular chamber, is the treatment of choice for patients born with one ventricle.