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Reabsorption and Secretion Along the Nephron Summary Table - Anatomy & Physiology (view source)
Revision as of 14:55, 4 September 2008
, 14:55, 4 September 2008no edit summary
*It is reabsorbed using a symporter with sodium via secondary active transport
*It is reabsorbed using a symporter with sodium via secondary active transport
*[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Glucose|Link to Article]]</TD>
*[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Glucose|Link to Article]]</TD>
<TD>N/A</TD>
<TD><center>N/A</center></TD>
<TD>N/A</TD>
<TD><center>N/A</center></TD>
<TD>N/A</TD>
<TD><center>N/A</center></TD>
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</TR>
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*Is reabsorbed via endocytosis
*Is reabsorbed via endocytosis
*[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Protein|Link to Article]]</TD>
*[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Protein|Link to Article]]</TD>
<TD BGCOLOR="#C1f0f6">N/A</TD>
<TD BGCOLOR="#C1f0f6"><center>N/A</center></TD>
<TD BGCOLOR="#C1f0f6">N/A</TD>
<TD BGCOLOR="#C1f0f6"><center>N/A</center></TD>
<TD BGCOLOR="#C1f0f6">N/A</TD>
<TD BGCOLOR="#C1f0f6"><center>N/A</center></TD>
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<TR>
*HCO<sub>3</sub><sup>-</sup> is reabsorbed here in a different way to other substances. The presence of hydrogen in the lumen causes some amount of it to dissociate to carbon dioxide and water via the enzyme carbonic anhydrase. These enter the epitehlial cells where they are reformed using the same enzyme. The HCO<sub>3</sub><sup>-</sup> then leaves the cell using the basolateral 3HCO<sub>3</sub><sup>-</sup>/Na<sup>+</sup> symporter.
*HCO<sub>3</sub><sup>-</sup> is reabsorbed here in a different way to other substances. The presence of hydrogen in the lumen causes some amount of it to dissociate to carbon dioxide and water via the enzyme carbonic anhydrase. These enter the epitehlial cells where they are reformed using the same enzyme. The HCO<sub>3</sub><sup>-</sup> then leaves the cell using the basolateral 3HCO<sub>3</sub><sup>-</sup>/Na<sup>+</sup> symporter.
*[[Acid Base Balance By The Kidney - Anatomy & Physiology#Secretion of H+ and the Reabsorption of HCO3- in the Proximal Tubule|Link to Article]]</TD>
*[[Acid Base Balance By The Kidney - Anatomy & Physiology#Secretion of H+ and the Reabsorption of HCO3- in the Proximal Tubule|Link to Article]]</TD>
<TD BGCOLOR="#C1f0f6">N/A</TD>
<TD BGCOLOR="#C1f0f6"><center>N/A</center></TD>
<TD BGCOLOR="#C1f0f6">
<TD BGCOLOR="#C1f0f6">
*Hydrogen is excreted in the collecting ducts both in exchange for potassium and on its own using an ATPase.
*Hydrogen is excreted in the collecting ducts both in exchange for potassium and on its own using an ATPase.
*Bicarbonate is reabsorbed.</TD>
*Bicarbonate is reabsorbed.</TD>
<TD BGCOLOR="#C1f0f6">N/A</TD>
<TD BGCOLOR="#C1f0f6"><center>N/A</center></TD>
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* Secreted here via primary active secretion.
* Secreted here via primary active secretion.
*[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Primary Active Secretion - Organic Acids and Bases|Link to Article]]</TD>
*[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Primary Active Secretion - Organic Acids and Bases|Link to Article]]</TD>
<TD>N/A</TD>
<TD><center>N/A</center></TD>
<TD>N/A</TD>
<TD><center>N/A</center></TD>
<TD>N/A</TD>
<TD><center>N/A</center></TD>
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