The diagram given here is the standard $ECG$ of a normal person. The $P$-wave represents the:

  • A
    Initiation of the ventricular contraction
  • B
    Beginning of the systole of all chambers
  • C
    End of systole of all chambers
  • D
    Contraction of both the atria

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Similar Questions

Assertion : Blood pressure is arterial blood pressure.
Reason : Blood pressure is measured by a sphygmomanometer.

Describe in detail: $ECG$.

Given below is the $ECG$ of a normal human. Which one of its components is correctly interpreted below?

$T$-wave represents:

What does an $ECG$ measure?

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