About The Medical Condition Cardiac Sound

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Find the definition of the medical term Cardiac Sound. Cardiac Sound defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Cardiac Sound

Cardiac Sound Medical Condition Defined & Explained
Cardiac Sound Medical Condition

What's The Definition Of The Medical Condition Cardiac Sound?

The sounds heard over the cardiac region produced by the functioning of the heart. There are four distinct sounds: the first occurs at the beginning of systole and is heard as a "lubb" sound; the second is produced by the closing of the aortic and pulmonary valves and is heard as a "dupp" sound; the third is produced by vibrations of the ventricular walls when suddenly distended by the rush of blood from the atria; and the fourth is produced by atrial contraction and ventricular filling but is rarely audible in the normal heart. The physiological concept of HEART SOUNDS is differentiated from the pathological HEART MURMURS.

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