Question

“DUB” sound is heard during which phase of cardiac cycle?

Answer 1

Answer:

These sounds are caused by the closure of valves in the cardiac cycle: S1(the “lub”): occurs at the end of the filling phase when the atrioventricular valves snap shut. S2(the “dub”): occurs at the end of the outflow phase when the outflow valves snap shut.

Aorta: 120 systolic; 80 diastolic

Left ventricle: 120 systolic; 10 diastolic

Right ventricle: 25 systolic; 4 diastolic

Heart region: Pressure (mmHg)

Answer 2

Answer:

it occurs at outflow valves

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