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Coronary circulation is the circulation of blood in the blood vessels of the heart muscle. The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins. Most tissue perfusion in the heart occurs when the coronary arteries open during diastole.
The pulmonary circulation is the circulation of blood between the heart and lungs. The pulmonary artery is deoxygenated and travels to the lungs to receive oxygen, where it re â¦ turns back via pulmonary oxygen, now oxygenated. The systemic circulation is the circulation of blood form heart throughout the body.ulmonary circulation is the function of the right side of the heart, circulates blood to the lungs and brings it back to heart, the purpose is to allow gas exchange between â¦ air and the circulating blood, it is called external respiration.