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neural signal through autonommic nervous system (ANS) can a. Increase the heart beat rate b. Decrease the heart beat rate c. Increase the strength of ventricular contraction d. Decrease the speed of conduction of action potential e. Increase cardiac output f. Decrease cardiac outputA. b,c and eB. a,d and fC. b,d and fD. a,c and e

Answer» Correct Answer - D
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. Sympatetic nerves increase neartbeat by secreting noradrenaline/norepinephrine.


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