HEART AND HEART SOUNDS
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Normal heart sounds and cardiac mumurs Hello everyone, welcome to my blogpost yet again. Today, I will discuss a very important topic from the clinical point of view. Yes, I am talking about the the cardiac mumurs which are the pathological heart sounds indicative of some underlying cardiac pathologies. In order to understand cardiac murmurs, we need to understand the normal heart sound. Normal heart sounds The normal heart sound, grossly called the LUB-DUB, is produced as a result of closure of the mitral(bicuspid) and tricuspid valve. This first heart sound is called S1. The second heart sound is produced by the closure of semilunar valves. i.e. aortic and pulmonary components. The second heart sound is called S2. The closure of these valve occur as a result of the pressure difference between atrium...