Difference between revisions of "Reabsorption and Secretion Along the Loop of Henle - Renal Flash Cards - Anatomy & Physiology"
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Latest revision as of 17:21, 21 June 2011
Use the mouse to highlight the answers. They are written in white
Question | Answer | Link |
Which of the three limbs has active transport? | The thick ascending limb | Link |
What system of reabsorption is used in the loop of henle? | Countercurrent multiplier | Link |
Explain how the countercurrent multiplier works? |
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Link |
What happens to the concentration of the tubular fluid as it passes around the loop? | The concentration increases as it descends as water leaves the tubule. However as the fluid ascends the other side ions are transported out causing the concentration to decrease. By the end of the loop the concentration is the same as at the start but the volume is greatly reduced. | Link |
Why is the gradient within the medulla not removed by the vasa recta? | It is also set up as a countercurrent system. Lots of ions enter as it passes down into the medulla as the interstitium become more concentrated but these all leave as it rises back out of the medulla as the interstitium becomes less so. | Link |