Question

How does baroreflex cause vasoconstriction?

Answer 1

Sympathetic activation leads to an elevation of total peripheral resistanceand cardiac output via increased contractility of the heart, heart rate,and arterial vasoconstriction, which tends to increase blood pressure. ... The combined effects will dramatically decrease blood pressure.

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Answer 2

hy
here is your answer
this causes an increased sympathetic input to the blood vessels, which stimulate the smooth muscle to contract, causing vasoconstriction, which increases total peripheral resistance and increases blood pressure.