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A heart " murmur" disorder indicates a d...

A heart " murmur" disorder indicates a defect of `:-`

A

Bundle of His

B

Heart valves

C

Sinuatrial node

D

Atrioventricular node

Text Solution

Verified by Experts

The correct Answer is:
B
Normal valves prevent the backflow of blood. When heart valves become defective, the backflow of blood occurs which disturbs the heart sounds and causes murmur.
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