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AIIMS2019ZoologyBody Fluids and Circulation

Assertion : SA node malfunctioning leads to disturbance of heart rate. Reason : SA node is the pacemaker of heart producing electric impulse for heart contraction.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

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