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Heart sound which is longer is...

Heart sound which is longer is

A

lub

B

dup

C

both equal

D

sometimes (a) and sometimes (b)

Text Solution

Verified by Experts

The correct Answer is:
A
The first heart sound (lub) is caused by sudden closure of bicuspid and tricuspid valves and is longer than the second heart sound (dup) which is caused by closure of semilunar valves.
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Read the following statements carefully and select correct choice from below: (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.

At the instant following the second heart sound,which heart valves are open ?

Read the following statement and choose the correct option. A. The first heart sound (lub) is associated with the closure of both semilunar valves. The duration between the adjacent second heart sound and first heart sound is 0.3 seconds C. The cardiac output is the stroke volume multiplied by the number of heartbeats per minute.

First heart sound is :-

Second heart sound is associated with the

The first heart sound is associated with :-

First heart sound is associated with the closure of _______ valves whereas second heart sound is associated with the closure of _____valves.

NCERT FINGERTIPS-BODY FLUIDS AND CIRCULATION-Body Fluids And Circulation
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