Presentation | 1996/6/20 Passive Counter Current Exchange Model for Renal Medulla and its Numerical Analysis at Steady State without Active Transport T. Nishimura, H. Hirayama, Y. Fukuyama, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | We have analyzed the spatial distribution of salt, urea and water volume flow at the inner medulla of kidney by using a steady state passive counter current system. The concentration changes of salt, urea and volume flow of water were expressed by 48 non linear algebraic equations and solved numerically with physiological parameters and initial conditions. The solute concentrations reach the maxima and the flow rate the minimum at the U shaped tube bend. Similar changes occur in the descending limb and in the capillary compartments. These results expressed that a passive counter current system with sources can produce considerable solute concentration gradients without taking into consideration of active transport nor axial diffusion. A passive steady countercurrent model of the renal medulla can express the patho physiological state of renal failure. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Kidney / Medulla / Countercurrent model / Salt / Urea / Volume flow / Capillary |
Paper # | MBE96-27 |
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Conference Information | |
Committee | MBE |
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Conference Date | 1996/6/20(1days) |
Place (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | ME and Bio Cybernetics (MBE) |
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Language | ENG |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Passive Counter Current Exchange Model for Renal Medulla and its Numerical Analysis at Steady State without Active Transport |
Sub Title (in English) | |
Keyword(1) | Kidney |
Keyword(2) | Medulla |
Keyword(3) | Countercurrent model |
Keyword(4) | Salt |
Keyword(5) | Urea |
Keyword(6) | Volume flow |
Keyword(7) | Capillary |
1st Author's Name | T. Nishimura |
1st Author's Affiliation | Electrical and Electronical Engineering, Ohita university() |
2nd Author's Name | H. Hirayama |
2nd Author's Affiliation | Department of Public Health, Asahikawa medical college |
3rd Author's Name | Y. Fukuyama |
3rd Author's Affiliation | Department of Public Health, Asahikawa medical college |
Date | 1996/6/20 |
Paper # | MBE96-27 |
Volume (vol) | vol.96 |
Number (no) | 113 |
Page | pp.pp.- |
#Pages | 8 |
Date of Issue |