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Read the following statements.
Statement I: Normal activities of heart are regulated intrinsically by specialized muscles.
Statement II: Neural signals through the sympathetic nerves can increase the rate of heart beat, the strength of ventricular contraction and there by the cardiac output.
In the light of given statements, choose the correct answer from the options given below.

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Both statement I and statement II are correct.

Statement I is correct, statement II is incorrect.

Statement I is incorrect, statement II is correct.

Both statement I and statement II are incorrect.

answer is A.

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Detailed Solution

Statement I is true. The heart has its own intrinsic regulation through specialised muscles.

Statement II is true. Neural signals through sympathetic nerves can increase heart rate, ventricular contraction strength, and consequently, cardiac output.

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