2 pages (500 words)
, Research Paper
The heart has four chambers, four valves and blood vessels which are joined. These chambers and valves are the main elements of the heart system. The four chambers perform different functions. Normally, these valves allow blood flow in one direction. If there is a deviation from the normal blood flow through the heart, as in the instance of a congested heart failure, a viral attack on the heart, extremely high blood pressure, disrupting the heart’s rhythm, a heart attack, malfunctioning of the valve or other heart related issues, which is often the result of a diseased heart.