Statement-I: Normal activities of heart are regulated intrinsically by specialised muscles.
Statement-II: Adrenal medullary hormones can increase cardiac output.
Pick out the correct option.

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Both Statement I and Statement II are wrong

Statement I is correct, Statement II is wrong

Statement I is wrong, Statement II is correct

Both Statement I and Statement II are correct

answer is B.

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Detailed Solution

Normal activities of the heart are regulated intrinsically, i.e., auto regulated by specialised muscles (nodal tissue), hence the heart is called myogenic. Sympathetic neural signals and adrenal medullary hormones can also increase the cardiac output.

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