Oxygen – Haemoglobin Dissociation Curve – Physiology


  1. armando! we just went over hemoglobin-dissociation curves in a&p lecture today so the timing on this upload was perfect

  2. So, it's like the oxygen molecules act as protons that dissociate in acid base reactions. I find that interesting

  3. Hi ! French student here thanking you a lot for all your videos ! Just one question though, what does DPG means ?

  4. Great Explanation , Please make a video to show what is the role of water in our body , thanks in advance

  5. Amazing explanation!
    One tip to remember the factors affecting the dissociation curve is "CADET, face RIGHT!"
    C – CO2
    A – Acidity
    D – DPG
    E – Exercise
    T – Temperature
    Rise in all these shifts the curve to right.

    I hope it helps to all the readers!

  6. Ufff ur handwriting and diagram and color choice is soo good it makes me to watch ur video on and on and on……

  7. You didnt explain the 2,3 bis phosphoglycerate role
    How it shifts
    Is that so that in tissues glycolysis yields 2,3 bisphosphoglycerate.so affinity of HB decreases for oxygen hence it is delieverd to site
    Please clarify me

  8. Sorry to say this, hemoglobin will have only one iron in its structure may be ferrous or ferric.. it doesn't has 4 iron molecules to each oxygen … It has 4globin chains n 1 ferrous ion in its centre… It would have been nice if u linked oxygen n co2 transport in first half… First half is more over like explaining to non medical students with colorful diagrams… But odc is good… Tq

  9. So if there is a shift to the right does that mean that oxygen is more likely to be released from the hemoglobin to the tissues, and a shift to the left means the hemoglobin is more likely to hold onto the oxygen? And with that, does that also mean a right shift=less O2 pick up in lungs; left shift=less O2 to tissues?

  10. You having an amazing way of explaining the systems separately i have a test tomorrow and my science teacher has a false way of explaining things so thank you very much

  11. Important to remember that only a relatively small amount of CO2 is exhaled. Most CO2 stays in the blood. Venous blood CO2 is 45mmHg. arterial blood CO2 is 40mmHg. So only 5mmHg is exhaled.

  12. thank you , simple and well explained unlike guyton book
    in 1:40 did you mean oxygenated blood because i'm confused

  13. ขอบคุณค่ะ อธิบายดีจริงๆ
    Thank you very much.
    Good explanation this help me to my quiz

  14. Well done👍👍👍
    I think it would be nice to put a link to a HD picture of the whole drawings of every video of yours so that we can use them as flashcards

  15. Can you please upload the drawing to your website. I cant find it there. Thank you so much for the lecture

  16. Thanks for that video which is sure clear.
    Can you confirm that the ppO2 you are speaking about is arterial pressure? I'm still trying to fully understand the big picture of it due to the different ppO2 depending on body locations (alveorus, arterial, veins)

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