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Standard VII
Biology
Types of Muscles
What is the d...
Question
What is the duration between lub and dub?
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Q.
Lub-dub sound is due to
Q.
Read the following statements carefully and select correct choice from given.
(a) First heart sound lub is produced due to closure of atrioventricular valves.
(b) First heart sound is of longer duration than second heart sound dub.
Q.
When are the sound "LUB" and "DUB" produced respectively during heart beat?
Q.
Typical lub-dub sounds in heart beat are due to
Q.
Typical 'lub-dub' sounds heard in heartbeat are due to .............. .
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