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Human Body & Health

Which mechanical limitation results when systemic vascular resistance severely drops suddenly?

A)Reduced mean arterial pressure (MAP)
B)Increased end-systolic volume (ESV)
C)Elevated ejection fraction fraction (EEF)
D)Decreased baroreceptor reflex activation

💡 Explanation

A sudden drop in systemic vascular resistance causes a decrease in the mean arterial pressure because the heart's cardiac output cannot compensate fast enough. This represents circulatory shock; therefore, the blood pressure drops sharply rather than increasing or staying constant.

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