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“The valves prevent the blood from returning back, or leaking back, to the heart or to the lungs once the blood is pumped,” he says. ... travel from the heart to other organs throughout the ...
[3] [4] [5] It is the abnormal leaking of blood backwards – regurgitation from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts. [4] Mitral regurgitation is the most common form of valvular heart disease. [3]
Aortic regurgitation (AR), also known as aortic insufficiency (AI), is the leaking of the aortic valve of the heart that causes blood to flow in the reverse direction during ventricular diastole, from the aorta into the left ventricle. As a consequence, the cardiac muscle is forced to work harder than normal.
After the left atrium fills with blood, the mitral valve allows blood to flow from the left atrium into the heart's main pumping chamber called the left ventricle. It then closes to keep blood from leaking back into the left atrium or lungs when the ventricle contracts (squeezes) to push blood out to the body.
Cardiovascular problems like coronary heart disease and heart attacks are common, but not all heart-related diseases occur within the heart muscles or arteries. ... How common are heart valve ...
The mitral valve, so named because of its resemblance to a bishop's mitre, is the heart valve that prevents the backflow of blood from the left ventricle into the left atrium of the heart. It is composed of two leaflets, one anterior and one posterior, that close when the left ventricle contracts.
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