EVERYDAY SCIENCE

Detailed explanation-1: -The endocardium lines the entire inner surface of all the heart chambers and is continuous with the inner layer of the blood vessels.

Detailed explanation-2: -The endocardium is a thin, smooth tissue that makes up the lining of the chambers and valves of the heart. The innermost layer of the heart’s walls, it serves as a barrier between cardiac muscles and the bloodstream and contains necessary blood vessels.

Detailed explanation-3: -The endocardium is the innermost layer of the heart. It lines the inner surfaces of the heart chambers, including the heart valves. The endocardium has two layers. The inner layer lines the heart chambers and is made of endothelial cells.

Detailed explanation-4: -A double-layer, fluid-filled sac known as the pericardium, surrounds the heart. The two layers of the pericardium are called the outer fibrous/parietal pericardium and the inner serous/visceral pericardium.

Detailed explanation-5: -Forming the inner surface of the myocardial wall is a thin lining called the endocardium. This layer lines the cavities of the heart, covers the valves and small muscles associated with opening and closing of the valves, and is continuous with the lining membrane of the large blood vessels.