LOOP OF HENLE explained!!

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CRANIAL NERVES made easy!!:

A detailed explanation of how the Loop of Henle helps to concentrate urine using the countercurrent multiplication mechanism. CLICK HD for better quality ^_^, Enjoy!

FUNCTION OF THE NEPHRON made easy!!:

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FAQs [disclaimer: these answers are as far as my knowledge stretches, if you have a better explanation inbox me, I would be happy to hear it ^_^]:

1) Ruz, why doesn’t the osmolarity of the interstitial fluid change when water leaves the descending limb?

Well… from what I understand: it is primarily because the water in the descending limb is leaving passively (as opposed to being pumped out) whereas the NaCl in the ascending limb is being actively transported out. Therefore, the solute concentration in the medulla is being added to at a far quicker rate than water molecules are able to leave to dilute it.

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32 COMMENTS

  1. I know I'm 4 years late, but thank you for the video. I couldn't understand anything from reading the book over and over again.

  2. Bless you..I need a medical school refund to send you that check..2 hrs sitting in lecture to no avail. You nailed it!

  3. Thank you so much……. I was checking all videos on this topic
    N I stopped checking after watching ur video mam
    Awesomly explained! 😄😄

  4. I was not able to visualize that how the increasing osmolarity down the medulla is generated thanks you very much your video helped a lot😊😊😊

  5. Hi! I don’t understand why osmolarity in the medulla stays the same after water enters in the descending limb of Henle.

  6. I have only one question, why doesn't equilibrating change concentration AMONG the loop, why ions from lower parts don't mix with upper part making one common concentration? Sorry for my english, it's not my language :] And btw your explanation helps a lot! Thank you 🙂

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