Question

10 a rise in blood pressure causes a reflexive
multiple choice
activation of the parasympathetic system and inhibition of the sympathetic system.
activation of the sympathetic system and inhibition of the parasympathetic system.
activation of both the parasympathetic system and the sympathetic system.
inhibition of both the parasympathetic system and the sympathetic system

Explanation:

When blood pressure rises, the body's baroreceptor reflex is activated. The parasympathetic nervous system (which has a calming effect, e.g., slows heart rate) is activated to counter - act the rise. At the same time, the sympathetic nervous system (which can increase heart rate and blood pressure) is inhibited. This is a negative feedback mechanism to bring blood pressure back to normal.

Answer:

activation of the parasympathetic system and inhibition of the sympathetic system.