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Circulation of Blood

During each c...

Question

During each cardiac cycle two prominent sounds are produced which can be easily heard through ____.

A

electrocardiograph

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B

stethoscope

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C

sphygmomanometer

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D

galvanometer

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Solution

The correct option is B
stethoscope

Stethoscope is the device used to listen to visceral sounds including that of heart, lungs, intestines etc. The stethoscope was invented in France in 1816 by Rene Laennec.

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Q. Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound in heard when :

Doctors use stethoscope to hear the sound ; Produced during each cardiac cycle. The second sound is heard when:

Q. Read the following statements:
(i) During a cardiac cycle, both ventricles pump out approximately

70 ml

of blood called stroke volume.
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(iii) Cardiac output of an athlete will be higher than that of an ordinary man.
(iv) During each cardiac cycle two prominent sounds are produced.
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Q. Electrocardiograph is an instrument which records the electrical activity of the brain during a cardiac cycle.

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