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Reabsorption and Secretion Along the Loop of Henle - Anatomy & Physiology (view source)
Revision as of 16:51, 3 September 2008
, 16:51, 3 September 2008→Transport
* 20% of the filtered sodium is reabsorbed thanks to the countercurrent multiplier from the thick ascending limb.
* 20% of the filtered sodium is reabsorbed thanks to the countercurrent multiplier from the thick ascending limb.
* Potassium leaks back into the tubule through special channels
* Potassium leaks back into the tubule through special channels
* As with the [[Proximal Tubule - Anatomy & Physiology| Proximal Tubule]]:
** Na<sup>+</sup> / K<sup>+</sup> ATPases in the basolateral membrane move potassium into epithelial cells from the intercellular spaces in order to remove sodium
** Potassium is then cleared from the cells using a co-transporter with chlorine
* Cations (e.g. sodium, potassium, calcium and magnesium) can passively move paracellulary into the [[Vasa Recta - Anatomy & Physiology | vasa recta]]
* Cations (e.g. sodium, potassium, calcium and magnesium) can passively move paracellulary into the [[Vasa Recta - Anatomy & Physiology | vasa recta]]