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Coronary circulation is the circulation of blood in the arteries and veins that supply the heart muscle (myocardium). Coronary arteries supply oxygenated blood to the heart muscle. Cardiac veins then drain away the blood after it has been deoxygenated.
Together with the left anterior descending artery, the right coronary artery helps supply blood to the middle or septum of the heart. Smaller branches of the coronary arteries include: obtuse marginal (OM), septal perforator (SP), and diagonals. Why are the coronary arteries important?
Coronary circulation, part of the systemic circulatory system that supplies blood to and provides drainage from the tissues of the heart. In the human heart, two coronary arteries arise from the aorta just beyond the semilunar valves; during diastole, the increased aortic pressure above the valves
What are coronary arteries? The coronary arteries are major blood vessels in your body, supplying blood to your heart. They make it possible for your heart to beat and pump blood throughout your body. You have a right coronary artery (RCA) and a left main coronary artery (LMCA). Each contains smaller branches that go deep inside your heart muscle.
This demand for oxygen is met by the coronary circulation, which is responsible for delivering blood to the myocardium and represents approximately 5% of cardiac output.[1] Adequate blood flow through the coronary vessels is critical to avoid ischemia and maintain the integrity of the myocardial tissue.
This is because the coronary blood vessels surrounding the heart resembles a little crown! And circulation refers to “the flow of blood.” So, coronary circulation is the movement of blood throughout the vessels that supply the myocardium also known as the heart muscle.
The coronary arteries are responsible for carrying nutrient-rich, oxygenated blood from the left ventricle to the myocardium; while the coronary veins take nutrient – poor deoxygenated blood away from the myocardium and to the right atrium.
The coronary circulation refers to the vessels that supply and drain the heart. Coronary arteries are named as such due to the way they encircle the heart, much like a crown. This article will outline the naming, distribution, and clinical relevance of vessels in the coronary circulation.
The major vessels of the coronary circulation are the left main coronary that divides into left anterior descending and circumflex branches, and the right main coronary artery. The left and right coronary arteries originate at the base of the aorta from openings called the coronary ostia, behind the aortic valve leaflets.
The coronary arteries run along the coronary sulcus of the myocardium of the heart. Their main function is to supply blood to the heart. This is a crucial function for myocardial function and subsequently homeostasis of the body.