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Reflex Arc

In normal ECG...

Question

In normal ECG, the component that signifies duration of one cardiac cycle is ______.

A

Q-T interval

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B

P-R interval

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C

S-T segment

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D

R-R interval

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Solution

The correct option is D R-R interval
The RR interval is the time elapsed between two successive R waves of the QRS signal on the electrocardiogram is a function of intrinsic properties of the sinus node as well as autonomic influences.
So, the correct answer is option D.

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