Solvent drag

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Solvent drag is a phenomenon in renal physiology. It is when solvents in the ultrafiltrate are transported back from the renal tubule by the flow of water rather than specifically by ion pumps or other membrane transport proteins.^[1]

It generally occurs in the paracellular, rather than transcellular, pathway across the tubule cells.

It is seen e.g. in the passive transport in renal sodium reabsorption, renal chloride reabsorption as well as renal urea handling.

[edit] References

1. ^ Walter F., PhD. Boron. Medical Physiology: A Cellular And Molecular Approaoch. Elsevier/Saunders. ISBN 1-4160-2328-3.  Page 791

v • d • e Urinary system, physiology: renal physiology and acid base physiology Filtration Renal blood flow - Ultrafiltration - Countercurrent exchange Hormones affecting filtration Antidiuretic hormone (ADH) - Aldosterone - Atrial natriuretic peptide Secretion/clearance Pharmacokinetics - Clearance of medications Reabsorption Solvent drag -Na+ - Cl- -urea -glucose -oligopeptides -protein Endocrine Renin - Erythropoietin (EPO) - Calcitriol (Active vitamin D) - Prostaglandins Assessing Renal function / Measures of dialysis Glomerular filtration rate - Creatinine clearance - Renal clearance ratio - Urea reduction ratio - Kt/V - Standardized Kt/V - Hemodialysis product - PAH clearance (Effective renal plasma flow - Extraction ratio) Acid base physiology Fluid balance - Darrow Yannet diagram - Body water - Interstitial fluid - Extracellular fluid - Intracellular fluid/Cytosol - Plasma - Transcellular fluid - Base excess - Davenport diagram - Anion gap - Arterial blood gas Buffering/compensation Bicarbonate buffering system - Respiratory compensation - Renal compensation

Categories: Renal physiology

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• This page was last modified 19:35, 24 March 2008 by Wikipedia user Pichpich. Based on work by Wikipedia user(s) Alaibot and Mikael Häggström.
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