Home › CBSE Class 11 (Science) › Biology › Body Fluids and Circulation › The second heart sound, dub, is linked to closur…
The second heart sound, dub, is linked to closure of which valves?
ATricuspid valve
BMitral valve
CSemilunar valves
DBicuspid valve
Answer & Solution
Correct answer: C. Semilunar valves
When the ventricles relax, the semilunar valves close and produce the dub sound.
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