1
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : SA node malfunctioning leads to disturbance of heart rate.

Reason : SA node is the pacemaker of heart producing electric impulse for heart contraction.

A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true, but reason is not the correct explanation of assertion.
C
If assertion is true, but reason is false.
D
If both assertion and reason are false.
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