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10.3109/10739689509146761 http://scihub22266oqcxt.onion/10.3109/10739689509146761 7497165!ä!7497165 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Microcirculation 1995 ; 2 (2): 125-39 Nephropedia Template TP {{tp|p=7497165|t=1995. Renal medullary microcirculation: architecture and exchange |pdf=|usr=}}{{7497165}} gab.com Text Renal medullary microcirculation: architecture and exchange JO: Microcirculation http://www.kidney.de/pget.php?&tw=1&pmid=7497165 #FOAvip The architecture of the renal medullary microcirculation is highly specialized. Consistent with their role in countercurrent exchange, the vessels (the vasa recta and the intervening capillaries) have high permeabilities to fluid and small hydrophilic solutes. The urea permeability of the continuous endothelium of the descending vasa recta (DVR) in the outer medulla is greatly enhanced by a urea transporter. Aquaporin channels have also been identified in these vessels. In spite of the absence of lymphatics from the inner medulla, fluid uptake from the interstitial fluid (ISF) through the fenestrated endothelium of the ascending vasa recta (AVR) appears to be driven by differences in hydrostatic and oncotic pressure. Because the AVR have high Lp's [10(-5) cm s-1 (cm H2O)-1] and are mechanically linked to surrounding structures, small increments of ISF pressures above the pressure within the AVR can drive significant volumes of fluid into AVR if ISF volume expands. The lower reflection coefficients to serum albumin of the AVR as compared with the DVR may be important in the clearance of interstitial plasma protein. Recent work on isolated DVR from the outer medulla has revealed that these vessels are capable of vasoconstriction and thus of regulating medullary blood flow. Twit Text FOAVip Renal medullary microcirculation: architecture and exchange ????Microcirculation http://www.kidney.de/pget.php?&tw=1&pmid=7497165 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=7497165 #FOAvip English Wikipedia <ref>{{Cite pmid|7497165}}</ref> Renal medullary microcirculation: architecture and exchange #MMPMID7497165 Michel CC Microcirculation 1995[Aug]; 2 (2): 125-39 PMID7497165show ga The architecture of the renal medullary microcirculation is highly specialized. Consistent with their role in countercurrent exchange, the vessels (the vasa recta and the intervening capillaries) have high permeabilities to fluid and small hydrophilic solutes. The urea permeability of the continuous endothelium of the descending vasa recta (DVR) in the outer medulla is greatly enhanced by a urea transporter. Aquaporin channels have also been identified in these vessels. In spite of the absence of lymphatics from the inner medulla, fluid uptake from the interstitial fluid (ISF) through the fenestrated endothelium of the ascending vasa recta (AVR) appears to be driven by differences in hydrostatic and oncotic pressure. Because the AVR have high Lp's [10(-5) cm s-1 (cm H2O)-1] and are mechanically linked to surrounding structures, small increments of ISF pressures above the pressure within the AVR can drive significant volumes of fluid into AVR if ISF volume expands. The lower reflection coefficients to serum albumin of the AVR as compared with the DVR may be important in the clearance of interstitial plasma protein. Recent work on isolated DVR from the outer medulla has revealed that these vessels are capable of vasoconstriction and thus of regulating medullary blood flow. |Animals[MESH] |Biological Transport[MESH] |Blood Flow Velocity[MESH] |Body Water/metabolism[MESH] |Capillary Permeability[MESH] |Kidney Medulla/*blood supply[MESH] |Metabolic Clearance Rate[MESH] |Microcirculation/ultrastructure[MESH]Renal medullary microcirculation: architecture and exchange (epmc).pdf DeepDyve Pubget Overpricing