Using a stethoscope,you listen to a beating heart and hear "lub- dup,lub- dup." These sounds are created by

Name: Using a stethoscope,you listen to a beating heart and hear "lub- dup,lub- dup." These sounds are created by
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Question

Quizplus · Accepted Answer

The "lub" sound is created by the closing of the mitral and tricuspid valves in the heart, while the "dup" sound is created by the closing of the aortic and pulmonary valves. Therefore, the sounds heard through a stethoscope are created by the valves in the heart closing.

Using a Stethoscope,you Listen to a Beating Heart and Hear