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9.         Discuss the mechanism(s) by which heart rate and strength of contraction are impacted by sympathetic activation...

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Medical Sciences

9.         Discuss themechanism(s) by which heart rate and strength ofcontraction are impacted by sympathetic activation (6 pts)?

10. Discuss the reflex that regulates changes in blood pressurethrough the activation of baroreceptors (8 pts).

12.       Compare and contrast actionpotentials in myocardial cells and P cells with respect tomechanism and function (12 points).

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3.8 Ratings (376 Votes)
9The sympathetic nerve activation releases the hormones catecholaminesepinephrines and norepinephrin at neuromuscular junction of cardiac nervesNorepinephrin minimizes the repolarization period and accelerates the depolarization and contractionFurther it accerleate the heart    See Answer
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