Which circulation involves the right ventricle?

The correct answer is pulmonary circulation, which specifically involves the right ventricle of the heart. In pulmonary circulation, the right ventricle pumps deoxygenated blood into the pulmonary arteries. This blood travels to the lungs, where it gets oxygenated. Once the blood has received oxygen in the lungs, it returns to the left atrium of the heart via the pulmonary veins, ready to be pumped out to the rest of the body through systemic circulation.

Each of the other types of circulation plays a different role in the body's cardiovascular system. Systemic circulation refers to the movement of oxygenated blood from the left side of the heart to the rest of the body and the return of deoxygenated blood to the right side of the heart. Coronary circulation is the flow of blood to and from the tissues of the heart itself, providing the heart muscle with the necessary nutrients and oxygen. Renal circulation involves the flow of blood to and from the kidneys, where waste products are filtered. Therefore, the critical role of the right ventricle in pumping blood to the lungs for oxygenation is what defines pulmonary circulation.