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What are the mechanisms that produce this response?

What are the mechanisms that produce this response?

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An increase in blood volume brings about a natriuresis and diuresis, mediated in part by alterations in proximal tubule reabsorption.

A. Increased baroreceptor firing: decreased sympathetic tone: decreased peripheral resistance: decreased proximal tubule absorption
B. Increased baroreceptor firing: Increased sympathetic tone: decreased peripheral resistance: decreased proximal tubule absorption
C. Decreased baroreceptor firing: decreased sympathetic tone: decreased peripheral resistance: decreased proximal tubule absorption
D. Decreased baroreceptor firing: decreased sympathetic tone: increased peripheral resistance: increased proximal tubule absorption

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Block 6 Renal physio Dr Shams w xpl
Asked by Logan, Last updated: Mar 12, 2020

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John Smith

John Smith

Answered Sep 09, 2016

Increased baroreceptor firing : decreased sympathetic tone: decreased peripheralresistance: decreased proximal tubule absorption-an increased blood volume will increase the activity of both high and low pressurebaroreceptors, that brings about a decrease in sympathetic tone. decreased activity of the renalnerve supply to the kidney decreases arterial resistance and therefore gfr. simultaneously,reduced catecholamine release reduces proximal tubule reabsorption of sodium, chloride,bicarbonate and water. this in combination with increased release of natriuretic peptides bringsabout a rise in excretion of salt and water.
 

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