Given below are two statements.Statement I - | vedclass

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(B) Statement $I$ is incorrect because the heart sound $Dub$ (or $S2$) is produced by the closure of the semilunar valves at the beginning of ventricu

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Both statement $I$ and statement $II$ are incorrect.

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(B) Statement $I$ is incorrect because the heart sound $Dub$ (or $S2$) is produced by the closure of the semilunar valves at the beginning of ventricular diastole.Statement $II$ is incorrect because the heart sound $Lubb$ (or $S1$) is produced by the closure of the atrioventricular valves at the beginning of ventricular systole,not during atrial systole.Therefore,both statements are incorrect.

Given below are two statements.
Statement $I$ - The heart sound $Dub$ is heard during ventricular diastole.
Statement $II$ - The heart sound $Lubb$ is heard during atrial systole.
In the light of above statements,select the correct option given below:

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Given below are two statements.Statement $I$ - The heart sound $Dub$ is heard during ventricular diastole.Statement $II$ - The heart sound $Lubb$ is heard during atrial systole.In the light of above statements,select the correct option given below: