EVERYDAY SCIENCE

Detailed explanation-1: -The endocardium covers the heart valves, and it is these valves which are primarily affected by infective endocarditis. If the infection remains untreated, multiplying bacteria may eventually destroy the valves and result in heart failure.

Detailed explanation-2: -Definition. Endocarditis is an inflammation or infection of the endocardium, which is the inner lining of the heart muscle and, most commonly, the heart valves. It is usually caused by bacterial infection, but can be caused by fungus.

Detailed explanation-3: -The endocardium lines the inside of the heart and is in direct contact with circulating blood. Infectious bacteria carried in the blood would come into close contact with the endocardium, which would be most susceptible to infection.

Detailed explanation-4: -The epicardium is the outer layer that contains blood vessels. The myocardium is the middle layer that is composed of contractile tissues. The endocardium is the innermost layer and composes the valves, inner lining of the chambers, and contains vessels and nerves.

Detailed explanation-5: -The endocardium is the innermost layer of the heart and lines the chambers and extends over projecting structures such as the valves, chordae tendineae, and papillary muscles.