👉 The septum fluid, also known as the pericardial fluid in its cardiac context, is a clear, colorless liquid found within the pericardial sac surrounding the heart. This fluid serves as a lubricant, reducing friction between the heart and the surrounding pericardial membranes during cardiac movements. It also plays a crucial role in maintaining the heart's position within the chest cavity, ensuring proper cardiac function and preventing excessive movement that could lead to complications. The septum fluid is produced by the mesothelial cells lining the pericardial sac and is constantly replenished to replace any that may be lost due to normal cardiac activity.
