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Old 01-30-2013
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Default Question about Kidneys and Hypertension

This might seem like a really stupid question but one I have a hard time understanding.

When there is an increase in blood pressure, how does the vascular tone of the kidneys change?

From what I understand, and I might be wrong, but the kidney wants to maintain a constant renal plasma flow. So increased blood pressure should mean that the blood flow is also increased.

To compensate for the increased blood flow, the kidney vasodilates the afferent arterioles? Is that basic point of understanding correct?
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