MICROANATOMY

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.

Detailed explanation-2: -The pericardium consists of two layers: the fibrous and the serous. The fibrous pericardium is a conical-shaped sac. Its apex is fused with the roots of the great vessels at the base of the heart. Its broad base overlies the central fibrous area of the diaphragm with which it is fused.

Detailed explanation-3: -Pericardial effusion is an accumulation of fluid in the pericardium, the sac that holds your heart. When it happens quickly or involves a large amount of fluid, the excess fluid can take up too much space in the pericardium, compressing your heart and causing a life-threatening condition known as cardiac tamponade.