👉 The term "posteromedian" is a medical term used to describe the line between the midline of the left and right ventricles. It is also known as the "midline" or "common axis" of the heart, as it connects the two main chambers of the heart. The posteromedians are located at the midpoint of the heart's two great arteries (the aorta and pulmonary artery) and are important for the flow of blood through the heart. The posteromedians