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P.Normal activities of the heart are reg...

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 function ( ANS) .
R. Parasympathetic mental 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 ?

A

None

B

One

C

Two

D

Three

Text Solution

Verified by Experts

The correct Answer is:
B
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