What increases the rate of heart beat and the strength of ventricular contraction?
What increases the rate of heart beat and the strength of ventricular contraction?
Autonomic nervous system
Adrenal medullary hormones
Parasympathetic neural signals
Sympathetic nerves
Solution
Neural signals through the sympathetic nerves (part of ANS) can increase the rate of heart beat, the strength of ventricular contraction and thereby the cardiac output.