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  • The second heart sound dubb is associated with the closure of (a) Tricuspid valve (b) Semilunar valves (c) Bicuspid valve (d) Tricuspid and bicuspid valves

The second heart sound (dubb) is associated with the closure of
(a) Tricuspid valve
(b) Semilunar valves
(c) Bicuspid valve
(d) Tricuspid and bicuspid valves.

Answers (1)

The answer is the option (b) Semilunar valve
Explanation: The bicuspid valve, tricuspid valve and both together are associated with the first heart sound, and the semilunar valve is associated with the second.

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