NEET PG DENTAL EXAM

Detailed explanation-1: -The inner (visceral) layer of the serous pericardium lines the outer surface of the heart itself. Between the two layers of the serous pericardium is the pericardial cavity, which contains pericardial fluid . It is this fluid that provides lubrication between the two layers, and allows the heart to expand and contract.

Detailed explanation-2: -The part of the visceral layer that covers the heart, but not the great vessels is called the epicardium. As the serous pericardium reflects off various cardiac structures, it forms two sinuses: the transverse sinus and the oblique sinus.