Regulation of Cardiac Activity

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 ?

Cardiac Cycle

Cardiac output.

The duration of cardiac cycle is

Cardiac cycle.

What is the location of cardiac muscle ?

Cardiac output is

Cardiac output is