First Heart Sound: or S1 is the sound of the atrioventricular valves closing for systole and usually coincides with the radial pulse. S2, (racepinephrine) the second sound is the closing of the aortic and pulmonic valve and indicates diastole. Thanks for trusting HealthTap!
Answered 10/13/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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