A Short Note On The And Its Effect On The Body Essay

830 Words Mar 24th, 2016 4 Pages
Physiology
Murmurs are the product of intense blood flow across inflexible, calcified valves; faulty valves that permit reverse blood flow (regurgitation); faulty (deviant openings) in the septum, aorta, or pulmonary artery; or abnormally high velocity of blood flow through a normal structure. Supposedly blood generally flows soundlessly through the heart; yet, these conditions can generate tumultuous blood flow resulting in auscultation of swooshing or gusty sound over the precordium (Weber & Kelley, 2014). S1 & S2 are the most evident heart sounds with S1 representing the first sound and systole while S2 represents the diastole and the second sound. S1 signals the estimated onset of systole and is generated when the surge in intraventricular pressure in the course of contraction surpass the force within the atria inducing an unforeseen shutting of the tricuspid and mitral valves. Blood is forced through the aortic and pulmonic valves due to continuation of ventricular contraction (Pellico, 2013). The ventricles appear to loosen at the end of systole as the force within the heart lessens compared to the aortic and pulmonary artery precipitating a momentary back flow of blood leading to the semilunar valves to close, creating S2. A damaged valve leads to atypical tempestuous blood flow which creates a murmur during normally quiet systolic and diastolic phase. It’s essential to note where the murmur its best heard and transmitted to, since it may not be perceptible on all…

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