Fissure of the Heart Longitudinal Posterior

The longitudinal posterior cardiac groove (Sulcus longitudinalis posterior) is an anatomical structure that is located on the posterior surface of the heart and divides it into two halves. It has the shape of a triangle and is located between the right and left pulmonary veins.

The posterior longitudinal groove of the heart is an important element of the cardiovascular system, as it ensures the division of the heart into the right and left halves and allows blood to flow in the right direction. In addition, it plays a role in the formation of the chambers of the heart and ensures their proper structure and function.

This groove is also important for medical procedures such as cardiac catheterization, where it is used to determine the position of the catheter in the heart.

However, it is worth noting that the posterior longitudinal groove of the heart can be damaged in some heart diseases, for example, with myocardial infarction or chest injuries. In such cases, timely diagnosis and treatment are necessary to prevent possible complications.

The cardiac grooves are special anatomical formations located inside the heart. They serve to separate and organize its various structures. In this article we will look at the longitudinal posterior sulcus of the heart (longitudinal anterior sulcus of the heart).

The longitudinal posterior groove of the heart begins from the right atrioventricular orifice. It continues as a narrow gap in the interventricular septum. Running across the entire septum, the groove separates the right and left atria, which ensures the separation of these two parts of the heart. The anterior wall of the septum has a special protrusion called the left ventricular groove, which is a continuation of the posterior longitudinal groove.

In addition, the longitudinal posterior sulcus helps maintain the shape and structure of the heart. It forms the contour of the septum between the right and left atria and