Related to the heart and lungs,the cardiopulmonary system a cardiopulmonary bypass that shunts blood from the entrance to the right atrium through an oxygenator directly into the aorta.
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
The cardiovascular system is sometimes called the blood-vascular, or simply the circulatory, system. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries.
Cardiologists are doctors who specialize in diagnosing and treating diseases or conditions of the heart and blood vessels—the cardiovascular system.