Assertion :The SA node acts as pacemaker Reason: The SA node is located in the wall of the right atrium near the interatrial septum.

Both statements 1 and 2 are correct.

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Statement 1 is correct but statement 2 is incorrect.

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Statement 1 is incorrect but statement 2 is correct.

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Both statements 1 and 2 are incorrect.

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Solution

The correct option is B Statement 1 is correct but statement 2 is incorrect.
A: The SA node acts as pacemaker
R: The SA node is located at the junction of the crista terminalis in the upper wall of the right atrium an the opening of the superior vena cava.
So, the answer is B.

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Assertion :The SA node acts as pacemaker Reason: The SA node is located in the wall of the right atrium near the interatrial septum.

The correct option is B Statement 1 is correct but statement 2 is incorrect.A: The SA node acts as pacemakerR: The SA node is located at the junction of the crista terminalis in the upper wall of the right atrium an the opening of the superior vena cava.So, the answer is B.

The correct option is B Statement 1 is correct but statement 2 is incorrect.
A: The SA node acts as pacemaker
R: The SA node is located at the junction of the crista terminalis in the upper wall of the right atrium an the opening of the superior vena cava.
So, the answer is B.