Coronary arteries
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Coronary arteries
Coronary arteries are vital vessels that supply oxygenated blood to the heart muscle. Emerging directly from the aorta, they follow a distinct path along the heart’s surface, ensuring adequate blood supply to all cardiac tissues. These arteries encircle the heart, coursing along the coronary sulcus, giving branches along interventricular grooves (anterior interventricular sulcus, Inferior interventricular sulcus) and covering various regions of the myocardium.
Right coronary artery
The right coronary artery originates from the right coronary sinus of the aorta, beginning its descent along the coronary sulcus. Positioned between the right atrium and right ventricle, it predominantly encircles the right side of the heart. The right coronary artery commonly supplies blood to the inferior surface of the heart, ensuring the oxygenation of this crucial area.
Left coronary artery
The left coronary artery emerges from the left coronary aortic sinus, partially covered by the left auricle. Branching into two main arteries, the anterior interventricular artery – Left Anterior Descending and the circumflex artery, it ensures comprehensive blood supply to the left side of the heart. The anterior interventricular artery – Left Anterior Descending extends towards the apex of the heart along the anterior interventricular sulcus (groove), while the circumflex artery traverses the coronary sulcus on the left side.
The interventricular septum, dividing the heart into left and right chambers, receives blood supply primarily from branches of both the left coronary artery and the branches of the right coronary artery. Additionally, the conduction system of the heart, including the sinoatrial (SA) and atrioventricular (AV) nodes, commonly receives its blood supply from branches of the right coronary artery.