Answer:
How does parasympathetic stimulation decrease cardiac output?
Step-by-step explanation:
Parasympathetic stimulation (chrono and negative inotropism): Intense vagal stimulation can fundamentally cause the heart rate to decrease, up to 40% of normal, because the parasympathetic fibers settle mainly in the atria that control the heart rate. Because they are also present in the ventricles, their stimulation can also cause the heart to decrease to 20-30% of the force of contraction.