The posterior interventricular sulcus, also known as the posterior interventricular groove or sulcus, is a prominent groove on the outer surface of the heart. Here are three key points about the posterior interventricular sulcus:
Location: The posterior interventricular sulcus is situated on the back (posterior) surface of the heart. It extends vertically between the atrioventricular (AV) or coronary sulcus and the apex of the heart.
Course: The sulcus follows the pathway of the posterior interventricular artery, which is a major branch of the right coronary artery. The artery runs within the sulcus and supplies oxygenated blood to the posterior walls of both ventricles.
Significance: The posterior interventricular sulcus serves as a landmark for identifying the boundary between the right and left ventricles on the back surface of the heart. Additionally, the posterior interventricular artery, running within the sulcus, plays a crucial role in supplying oxygenated blood to the posterior walls of the heart.
The posterior interventricular sulcus, along with other cardiac grooves and coronary arteries, contributes to the overall structure and function of the heart, ensuring proper blood supply and cardiac performance.
