What Function Does the Pericardial Sac Have?

The pericardium is a thin sac that surrounds your heart. It protects and lubricates your heart and keeps it in place within your chest. Problems can occur when the pericardium becomes enflamed or fills with fluid.

What is the function of the pericardial sac and what does it store?

A fibrous sac called the pericardium surrounds the heart. This sac consists of two thin layers. Normally, there is a small amount of fluid between them. The fluid reduces friction between the two layers as they rub against each other during each heartbeat.

What is the function of the pericardial sac in a frog?

The amphibian heart is a three-chambered heart. Your heart has four chambers. The heart resides within the pericardium, a sac-like structure that contains lubricating pericardial fluid.