ANATOMY

Detailed explanation-1: -Your pericardium is a fluid-filled sac that surrounds your heart and the roots of the major blood vessels that extend from your heart. Conditions that affect your pericardium include pericarditis, pericardial effusion and constrictive pericarditis .

Detailed explanation-2: -The serous pericardium is a layer of serosa that lines the fibrous pericardium (parietal layer), which is reflected around the roots of the great vessels to cover the entire surface of the heart (visceral layer).

Detailed explanation-3: -The pericardium, also called pericardial sac, is a double-walled sac containing the heart and the roots of the great vessels. It has two layers, an outer layer made of strong connective tissue (fibrous pericardium), and an inner layer made of serous membrane (serous pericardium).

Detailed explanation-4: -The pericardium is a double-walled structure made up of an outer fibrous layer and an inner serous layer. The fibrous layer of the pericardium is a single connective tissue layer that is made up of collagen (type I and type III mainly) and elastin fibers; it is elastic and yet non-distensible.