Final answer:
Parasympathetic stimulation results in cardiac suppression, while sympathetic stimulation leads to cardiac stimulation.
Step-by-step explanation:
Parasympathetic stimulation results in cardiac suppression, while sympathetic stimulation leads to cardiac stimulation. Sympathetic stimulation triggers the release of norepinephrine (NE) from cardiac nerves and increases the metabolic rate, force of contraction, and heart rate. On the other hand, parasympathetic stimulation releases acetylcholine (ACh) from the vagus nerve, which hyperpolarizes the cardiac muscle cells and inhibits contraction, thus decreasing the strength of contraction and stroke volume. Therefore, IV anesthesia that leads to parasympathetic stimulation will result in cardiac suppression, while anesthesia leading to sympathetic stimulation will result in cardiac stimulation.