If a patient's heart rate increases significantly due to exercise, what compensatory mechanism helps maintain stable blood pressure despite the increase in cardiac output?

💡 Explanation

Vasodilation in peripheral blood vessels lowers resistance, maintaining blood pressure as cardiac output increases. This is because baroreceptors trigger vasodilation to balance the effects of increased heart rate on cardiac output; therefore, blood pressure remains stable rather than rising excessively due to increased heart rate alone.

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