Sympathetic innervation of kidney

[ChessMaster3000]

According to FA14 p 243, sympathetic innervation of the kidney release dopamine at the postganglionic terminal, which we know at low doses causes vasodilation and at high doses vasoconstriction. I tried looking this up, and while there was some verification that there are dopamine receptors in the renal vasculature, there was no mention of sympathetic innervation releasing dopamine to innervate those receptors. Is this an error, misrepresentation, or did I just miss out on the fact that the sympathetic system does release dopamine in the renal vasculature?

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[alicealicealice]

Looks like the nerves exist, but we don't really know what they do. Its seems like the important point is to know that the receptors exist and what happens at different dopamine levels, which you already mentioned. I saw that too and was just "like huh, wonder why no ones ever mentioned that" and took it at face value. Valid question as to why its in there.

Heres a paper from 1990: http://www.ncbi.nlm.nih.gov/pubmed?term=2143388

 

[ChessMaster3000]

Looks like the nerves exist, but we don't really know what they do. Its seems like the important point is to know that the receptors exist and what happens at different dopamine levels, which you already mentioned. I saw that too and was just "like huh, wonder why no ones ever mentioned that" and took it at face value. Valid question as to why its in there.

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Heres a paper from 1990: http://www.ncbi.nlm.nih.gov/pubmed?term=2143388

Alright, thanks. I really wish first aid updated and clarified its stuff more aggressively.