What is found between the visceral pericardium and the parietal pericardium?

Question

Quizplus · Accepted Answer

Pericardial fluid is found between the visceral and parietal pericardium. This fluid helps to prevent friction between the two layers as the heart beats. The lungs and heart are both found within the pericardial sac, but they are not located between the two layers of the pericardium. The fibrous pericardium is the tough outer layer of the pericardium and is not located between the visceral and parietal pericardium.

What Is Found Between the Visceral Pericardium and the Parietal