which sound appears when ventricles start relaxing. state its characters and cause.
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Answer:
The third heart sound is a low-pitched sound audible with the rapid rush of blood from the atrium into the ventricle as it starts relaxing
Explanation:
Normally, two distinct sounds are heard through the stethoscope: a low, slightly prolonged “lub” (first sound) occurring at the beginning of ventricular contraction, or systole, and produced by closure of the mitral and tricuspid valves, and a sharper, higher-pitched “dup” (second sound), caused…
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Answer:
Dup sound appears when ventricles starts relaxing due to closure of semilunar valves
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