Q.

The heart sound ‘dub’ is associated with

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a

opening of mitral valve only

b

closure of semilunar valves

c

closure of tricuspid and bicuspid valves

d

opening of semilunar valves

answer is B.

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Detailed Solution

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Closure of semilunar valve results in the generation of the sound ‘dub’.

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The heart sound ‘dub’ is associated with