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Question
Biology
Lubb-dup sound in heart arises due to:
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Q. Lubb-dup sound in heart arises due to:
Rajasthan PMT
Rajasthan PMT 1996
A
opening of semilunar, bicuspid and tricuspid valves
B
closure of semilunar, bicuspid and tricuspid valves
C
opening of tricuspid and bicuspid valves
D
closure of bicuspid and tricuspid valves
Solution:
The lubb - dup sound is produced due to closure of semilunar, bicuspid and tricuspid valves which prevents back flow of blood.