Osmolarity gradient: Difference between revisions
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Refers to the gradient created in the [[nephron]]s of the [[kidney]]s, between the tubules and the [[ |
Refers to the gradient created in the [[nephron]]s of the [[kidney]]s, between the tubules and the [[interstitial fluid]] sorrounding them. It is created by the solutes ([[urea]] and salt) exiting and reentering the tubules at different sections of the nephron. The selective permeability of the tubules is a major factor in this process. Tissue osmolarity increases from [[cortex]] (outer layar of a nephron), to [[inner medulla]] (middle layer of a nephron). |
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Revision as of 20:45, 14 June 2010
Refers to the gradient created in the nephrons of the kidneys, between the tubules and the interstitial fluid sorrounding them. It is created by the solutes (urea and salt) exiting and reentering the tubules at different sections of the nephron. The selective permeability of the tubules is a major factor in this process. Tissue osmolarity increases from cortex (outer layar of a nephron), to inner medulla (middle layer of a nephron).