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News Physiol Sci 2: 10-13, 1987;
1548-9213/87 $5.00
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News in Physiological Sciences, Vol 2, 10-13, Copyright © 1987 by International Union of Physiological Sciences

ARTICLES

Does the Brain "Remember" the Absolute Blood Pressure?

PK Dorward and PI Korner

A sustained change in resting blood pressure causes the threshold of arterial baroreceptors to shift rapidly, within 20-30 s, in the same direction. This greatly enhances the compensation for disturbances that cause small to moderate changes in blood pressure. A corollary of rapid resetting is ambiguity about the absolute level of blood pressure. Arterial baroreceptor reflexes are good at responding to changes in blood pressure, but they do not provide good information about absolute pressure.


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