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Old 12-27-2012
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Kidney Sympathetic Stimulation and Na Reabsorption!

I know that sympathetic nerves innervate the afferent arteriole more than the efferent arteriole, causing greater vasoconstriction, and thus DECREASING BOTH RPF AND GFR.

But what is the mechanism for increased reabsorption of Na from the proximal tubule from an increase in sympathetic stimulation?

Sorry if this is a dumb question. I've been reading all day, and things are now getting a little fuzzy in my head!
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Old 12-27-2012
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Sympathetic stimulation of jg cells (B1) increase renin release
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