Question

Regulations of cardiac activities.

Answer 1

Hi.


here is your answer. .


Normal activities of the heart are regulated by intrinsically, i.e auto regulated by specialised muscle hence the heart is called myogenic.


A special neural centre in the medulla oblengata can modrater the cardiac functions through autonomic nervous system.



Neural signal through the symphatic nerves part of ANS can increase the rate of heart beat the strength of ventricular contraction and thereby the cardiac output.



Another component of ANS decrease the rate of heart beat speed of conduction of action potential and thereby cardiac output.


hopeit helps you. ☺