Difference between revisions of "Reabsorption and Secretion Along the Nephron Summary Table - Anatomy & Physiology"
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− | {{ | + | {{toplink |
− | + | |backcolour = C1F0F6 | |
+ | |linkpage =Reabsorption and Secretion Along the Nephron - Anatomy & Physiology | ||
+ | |linktext =REABSORPTION AND SECRETION ALONG THE NEPHRON | ||
+ | |maplink = Urinary System (Content Map) - Anatomy & Physiology | ||
+ | |pagetype =Anatomy | ||
+ | }} | ||
+ | <br> | ||
<TABLE CELLPADDING="2" CELLSPACING="2" WIDTH="100%"> | <TABLE CELLPADDING="2" CELLSPACING="2" WIDTH="100%"> | ||
<TR> | <TR> | ||
− | <TD | + | <TD BGCOLOR="#C1f0f6"><center>'''Substance'''</center></TD> |
− | <TD WIDTH=" | + | <TD WIDTH="20%" BGCOLOR="#C1f0f6"><center>'''Proximal Tubule'''</center></TD> |
− | <TD | + | <TD BGCOLOR="#C1f0f6"><center>'''Loop of Henle'''</center></TD> |
− | <TD | + | <TD BGCOLOR="#C1f0f6"><center>'''Distal Tubule and Collecting Duct'''</center></TD> |
− | <TD | + | <TD BGCOLOR="#C1f0f6"><center>'''Hormonal Influences'''</center></TD> |
</TR> | </TR> | ||
<TR> | <TR> | ||
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*It is the cleared from the cells via the sodium/potassium ATPase | *It is the cleared from the cells via the sodium/potassium ATPase | ||
*[[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Sodium|Link to Article]]</TD> | *[[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Sodium|Link to Article]]</TD> | ||
− | <TD> | + | <TD></TD> |
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</TR> | </TR> | ||
<TR> | <TR> | ||
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<TD BGCOLOR="#C1f0f6"> | <TD BGCOLOR="#C1f0f6"> | ||
*Potassium is secreted into the lumen by the cells of the '''distal tubule''' | *Potassium is secreted into the lumen by the cells of the '''distal tubule''' | ||
− | + | *Potassium enters the cell in exchange for sodium | |
− | + | *It is excreted passively through ion channels and using a symporter with chlorine | |
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*[[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Potassium|Link to Article]]</TD> | *[[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Potassium|Link to Article]]</TD> | ||
− | <TD BGCOLOR="#C1f0f6"> | + | <TD BGCOLOR="#C1f0f6"></TD> |
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</TR> | </TR> | ||
<TR> | <TR> | ||
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*Freely diffuses from the collecting duct into the medullary interstitium | *Freely diffuses from the collecting duct into the medullary interstitium | ||
*[[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Urea|Link to Article]]</TD> | *[[Reabsorption and Secretion Along the Distal Tubule and Collecting Duct - Anatomy & Physiology#Urea|Link to Article]]</TD> | ||
− | <TD> | + | <TD>ADH makes the collecting duct more permeable to Urea</TD> |
</TR> | </TR> | ||
<TR> | <TR> | ||
− | <TD BGCOLOR="#C1f0f6">''' | + | <TD BGCOLOR="#C1f0f6">'''Water'''</TD> |
− | <TD BGCOLOR="#C1f0f6"> | + | <TD BGCOLOR="#C1f0f6"></TD> |
− | + | <TD BGCOLOR="#C1f0f6"></TD> | |
− | + | <TD BGCOLOR="#C1f0f6"></TD> | |
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− | <TD BGCOLOR="#C1f0f6" | ||
</TR> | </TR> | ||
<TR> | <TR> | ||
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*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 | + | <TD>N/A</TD> |
− | <TD | + | <TD>N/A</TD> |
− | <TD | + | <TD>N/A</TD> |
</TR> | </TR> | ||
<TR> | <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" | + | <TD BGCOLOR="#C1f0f6">N/A</TD> |
− | <TD BGCOLOR="#C1f0f6" | + | <TD BGCOLOR="#C1f0f6">N/A</TD> |
− | <TD BGCOLOR="#C1f0f6" | + | <TD BGCOLOR="#C1f0f6">N/A</TD> |
</TR> | </TR> | ||
<TR> | <TR> | ||
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* Calcium can passively move paracellulary into the vasa recta | * Calcium can passively move paracellulary into the vasa recta | ||
*[[Reabsorption and Secretion Along the Loop of Henle - Anatomy & Physiology#Transport|Link to Article]]</TD> | *[[Reabsorption and Secretion Along the Loop of Henle - Anatomy & Physiology#Transport|Link to Article]]</TD> | ||
− | <TD> | + | <TD></TD> |
− | <TD> | + | <TD></TD> |
</TR> | </TR> | ||
<TR> | <TR> | ||
− | <TD BGCOLOR="#C1f0f6">''' | + | <TD BGCOLOR="#C1f0f6">'''H<sup>+</sup> and HCO<sub>3</sub><sup>-</sup>'''</TD> |
<TD BGCOLOR="#C1f0f6"> | <TD BGCOLOR="#C1f0f6"> | ||
+ | * The secretion of H<sup>+</sup> in this section of the nephron is mainly a result of the Na<sup>+</sup>/H<sup>+</sup> antiporter in the apical membrane using secondary active transport. | ||
+ | *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> | ||
+ | <TD BGCOLOR="#C1f0f6"></TD> | ||
+ | <TD BGCOLOR="#C1f0f6"></TD> | ||
+ | <TD BGCOLOR="#C1f0f6"></TD> | ||
+ | </TR> | ||
+ | <TR> | ||
+ | <TD>'''Organic Acids and Bases'''</TD> | ||
+ | <TD> | ||
* 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 | + | <TD>N/A</TD> |
− | <TD | + | <TD>N/A</TD> |
− | <TD | + | <TD>N/A</TD> |
</TR> | </TR> | ||
</TABLE> | </TABLE> | ||
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Revision as of 14:04, 4 September 2008
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Sodium |
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Potassium |
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Urea |
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ADH makes the collecting duct more permeable to Urea |
Water | ||||
Glucose |
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N/A | N/A | N/A |
Protein |
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N/A | N/A | N/A |
Calcium |
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H+ and HCO3- |
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Organic Acids and Bases |
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N/A | N/A | N/A |