P. Normal activities of the heart are regulated extrinsically i.e., auto regulated by specialized muscles. Q. A special neural center in the medulla oblongata can moderate the cardiac function through

Question

P. Normal activities of the heart are regulated extrinsically i.e., auto regulated by specialized muscles.
Q. A special neural center in the medulla oblongata can moderate the cardiac function through the autonomic nervous system (ANS).
R. Parasympathetic neural signals decrease the rate of heartbeat.
S. Adrenal medullary hormones increase cardiac output.

How many of the given statements are incorrect about the regulation of cardiac activities?

Options:

Answer:

B

Solution:

Statement P is incorrect.

Normal working of the heart are regulated intrinsically, i.e., by the nodal tissue (specialised muscles). This is the reason why the heart is called myogenic.

TestHub · Accepted Answer

Statement P is incorrect. Normal working of the heart are regulated intrinsically, i.e., by the nodal tissue (specialised muscles). This is the reason why the heart is called myogenic.

Zoology - Body Fluids and Circulation Question with Solution | TestHub

Options:

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