Q.

The heart sound ‘dub’ is produced due to

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a

closure of atrio-ventricular valves during ventricular systole

b

closure of semilunar valves during ventricular systole

c

closure of semilunar valves during joint diastole

d

closure of atrio-ventricular valves during joint diastole

answer is D.

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Detailed Solution

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Second heart sound ‘dub’ is due to closure of semilunar valves during joint diastole.

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