Hemoglobin | Human anatomy and physiology | Health & Medicine | Khan Academy

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  • čas přidán 31. 07. 2024
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    Hemoglobin and its role in the circulatory system. Created by Sal Khan.
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Komentáře • 258

  • @sagarkapur9006
    @sagarkapur9006 Před 10 lety +124

    I was ten years old when I first found khan academy and I first learnt about the lungs and pulmonary system from there videos and my science teacher was so impressed and now I'm his favourite student after watching more videos

  • @texkokes1
    @texkokes1 Před 6 lety +19

    Thanks for keeping the "why" at the forefront! I have watched at least 10 videos on this subject and this one is by far the best. thank you thank you!

  • @MRBOQORE
    @MRBOQORE Před 11 lety +23

    Thank you. I love you. As said before: "You deserve a noble prize"

  • @corey5454
    @corey5454 Před 9 lety +26

    I'm am addicted to these videos, I just love to learn!

  • @JacobMD1000
    @JacobMD1000 Před 9 lety +10

    great video! i studied hemoglobin a lot at a very high level and then watching this video helped connect it all. maybe post a video on hemoglobin and its interaction 2,3- BPG in the blood.

  • @caesarguerrero6314
    @caesarguerrero6314 Před 7 lety +3

    Thank you so much!!! You are the best teacher ever. Your enthusiasm and joy in teaching has no parallel. I am a teacher myself taking the Boards and I have nothing but good words for you. Thanks a million you are the best

  • @brandoncashin8317
    @brandoncashin8317 Před 5 lety +3

    Missed my Biochem lecture yesterday and this helped me get back on track, thanks!!!!

  • @adriudrik
    @adriudrik Před 12 lety

    It happend to me that ... I've seen this video entirely too... I just wanted to see a little, but it's fully addictive the way this man explain things easily and loving it. It's contagious!

  • @mazitazana1975
    @mazitazana1975 Před 8 lety

    this is soo helpful! THANKS! You know, I've been studying those facts, but this helps to connect the information, to truly understand the mechanism... and not to lose the overview.

  • @ashersflaquers
    @ashersflaquers Před 10 lety +4

    I love your enthusiasm! The human body is truly beautiful and wonderful :)

  • @BryhanEspinosa
    @BryhanEspinosa Před 9 lety +27

    2,3-Bisphosphoglycerate lowers Hemoglobin's binding affinity for O2- molecules which allows O2- molecules to travel to tissue requiring oxygen for anyone wondering why oxygen is removed.

  • @trishmaggieful1
    @trishmaggieful1 Před 12 lety

    I LOVE all your videos, I owe you my LIFE! lol:) You are amazing, and you have a way of taking really complicated material and breaking it down to be understandable. Wish all teachers knew how to do this:) Keep up the good work and appreciate all videos!!! Ive never seen the "interactive transcript" before that is freakin awesome Im always like, what did he say...and replay it 15 times (which I still do) but that is SO cool. Whenever I have a topic I always look to see if you have a vid on it.

  • @dianapersaud3383
    @dianapersaud3383 Před 11 lety +2

    he makes me understand concepts I always tried to understand but never do............best teacher in the whole universe!!!!! 2 thumbs up!!!!! :)

  • @lindasoto8280
    @lindasoto8280 Před 10 lety +3

    Thanks so much! i comprehend this concept so much more clearer now :D

  • @splatitup6862
    @splatitup6862 Před 6 lety +14

    God bless your amazing soul I get biochemistry now

  • @fleshcookie
    @fleshcookie Před 11 lety +5

    9:06- " give or take, ive never sat down and counted them" Lol Sal kills me.

    • @AabbbbA
      @AabbbbA Před 3 lety

      Killed me there 😂😂😂😂

  • @hollytom1
    @hollytom1 Před 11 lety

    This is excellent! I wish the title were more descriptive, because maybe I would have watched it when I needed to! Still a great lesson on the oxygen-hemoglobin dissociation curve and what drives it. Thanks!

  • @JanePelcher
    @JanePelcher Před 9 lety +1

    It makes sense now, thank you! So much better than the textbook. :D

  • @dingridcc
    @dingridcc Před 14 lety +1

    This is the stuff!!!!! I wish you were my teacher! Im sure alot of educational institutions would absolutely love to have you. Alot of of would benefit having you around...Fantastic!

  • @nyasha3019
    @nyasha3019 Před 2 lety +1

    Still one of the best videos ever .. straight forward and easy to understand

  • @natgizzer
    @natgizzer Před 13 lety +1

    Thank you so much for this educational video. It just helped me pass my exam with an A+, so feel no less than eternally grateful to you. I'll watch all of your stuff closely from now on. Thank you, thank you, thank you.

  • @clairens
    @clairens Před 13 lety +1

    well...I watched your kidney function video first. This has been the 5th in a row, and honestly, it was better to watch in terms of excitement, brain engagement, and fun than any series or cartoons. :) thanks for these past 1,5 hours!!

  • @jcfs123
    @jcfs123 Před 13 lety

    You make a difficult topic sound incredibly clear! Thank you.

  • @redstrawberries85
    @redstrawberries85 Před 13 lety

    Ok. Out of all the lectures ive listened on youtube. you have the best voice.
    Thank you for the lecture!

  • @qais84able
    @qais84able Před 12 lety +2

    I should say you are one of the best lecturer ever.... if you have a published book about hematology, would you post its name please.
    I usually get distracted when I sit in a lecture but your lecture is amazing.. I just love it...
    Thank you for this incredible video.

  • @sebastiangz7
    @sebastiangz7 Před 6 lety

    Simple, complete, clear, amazing!

  • @jcinqmars21
    @jcinqmars21 Před 13 lety

    excellent teacher. thank you for taking time out of your day to better others futures. I think we need more people like you.

  • @snackbob100
    @snackbob100 Před 11 lety +1

    your an inspiration, and your passion is infectious.

  • @naturelover3548
    @naturelover3548 Před 3 lety

    omg ! This video deserves a million thumbs up for the clarity, organization, timing, and I love that I could just hear an audio with a clear deep voice and while listening to the voice I am focus on watching all what was written in front of me. I like just hearing an audio with all the step by step instructions or lectures than watching someone visually and them trying to explain everything. This is a well done video and it is perfect for me to watch without distructions what is in front of me but able to learn what this lectures all about! Wow !!! I am so impressed with the voice (calm, confident, knowledgeable , very specific or direct to the point). I could watch or listen your video over and over and over again without getting tired hearing your voice while learning a lot of stuff, because of how you explain things ! Very well done !!! Love it !!!! Thank you !!!! This helps a lot for me !

  • @MaH80gd
    @MaH80gd Před 2 lety

    Sal Khan, you explain it so well! Thank you.

  • @marisolgarcia6580
    @marisolgarcia6580 Před 9 lety

    Thank you for this Video.!!
    I was confused on this section but from watching this video I actually love the subject on how Hemoglobin works..
    :D yay!! thanks again..

  • @ELUNE8888
    @ELUNE8888 Před 12 lety

    All I can say after each video is a big THANK YOU !

  • @uniquelyjasminec
    @uniquelyjasminec Před 10 lety

    Thanks! Currently studying for a big biology exam and your videos are helping me.

  • @ivkovina20
    @ivkovina20 Před 12 lety

    you deserve a nobel prize. I love you!!! best teacher ever

  • @Exploretheexperiece
    @Exploretheexperiece Před 8 lety

    Amazing explanation.May Almighty bless you.

  • @Katrinameh
    @Katrinameh Před 10 lety

    This is brilliant thank you for sharing !

  • @mapacave
    @mapacave Před 6 lety

    this was really helpful, thank you!

  • @sNtheU
    @sNtheU Před 8 lety

    awesome vid
    I'm M1 student & it really helped me, thanks

  • @madej1858
    @madej1858 Před 13 lety

    please come to new york city to teach!!! so clear , simple, fast, easy to understand!!

  • @kathleencraigie4703
    @kathleencraigie4703 Před 6 lety

    I love your videos on LUB DUB and HEART SOUNDS..... I have learned so much from those also... I love everything connected with the heart, blood, and immunity............ Your videos are so interesting and enjoyable... Thank you!!!!

  • @homero5891
    @homero5891 Před 13 lety

    molto utile, riassuntivo ma esauriente, grazie ancora

  • @sicarios92
    @sicarios92 Před 10 lety +3

    u did not mention 3rd allosteric inhibitor - bpg and carring on how a fetous gets oxygen from mummy i find it super intresting ;) but to conclude i love the video

  • @edwardhaughney9665
    @edwardhaughney9665 Před 10 lety

    This is most impressive. It is not just the great info but the great speaking voice that makes watching this video great. Here's to more of the same.

  • @MartialBachoffner
    @MartialBachoffner Před 7 lety

    Really cool! More I learn, more I want learn more and more and more...

  • @ashishmohankhare
    @ashishmohankhare Před 7 lety

    brilliant..brilliant explaination sir..,thank u so much for the video

  • @tbh_thebrand
    @tbh_thebrand Před 5 lety

    I'm here because I want to educate myself because my son has a rare case of korle bu and I want to understand how the blood works and yeah I'm confused as crap but your video was a ton of help.. thanks

  • @Dr.Ocreatus
    @Dr.Ocreatus Před 10 lety

    Perfect video thank you. it was very helpful!

  • @RyanGenX2
    @RyanGenX2 Před 13 lety

    Allosteric Inhibition effect of the acidic enviroment is called "Bohr"-effect and it works the other way around too, meaning alkalic enviroment supports the O2-Binding of Haem(Heme).
    Anyway, great video as always Sal. You really know how to simplify all these complex knowledge and make it easier to understand without leaving any vital information out. Great Job!

  • @valentinahaddad1836
    @valentinahaddad1836 Před 6 lety +1

    I enjoy learning and studying about human body as that reminds me how amazing creator is my God 💙

  • @aishluvzme
    @aishluvzme Před 13 lety

    hi.This was wonderful!! I totally get it now!!!!! and btw, I was wondering, do you have any lessons on proteins? Meaning, their structure and stuff? Thanks a lot :D

  • @Hugo241195
    @Hugo241195 Před 6 lety

    nice and clear, as always, thank you Khan academy :D

  • @aishafatima8906
    @aishafatima8906 Před 5 lety

    Thanks sal it was really helpful

  • @abc1233575
    @abc1233575 Před 11 lety

    More people need to like his videos, seriously we get what we want and give nothing in return so the least thing we could do is like the videos.

  • @tefelomathibane4828
    @tefelomathibane4828 Před 10 lety +18

    The Creator is indeed an intelligent being!!! I have never seen a mechanism so accurate and well-coordinated as this one!

    • @apocalypticskepticus3299
      @apocalypticskepticus3299 Před 7 lety +2

      Tefelo Mathibane creator is also so brilliant that he created Hemoglobinopathies as well...
      Simply wonderful group of diseases.

    • @khoiduongminh5111
      @khoiduongminh5111 Před 6 lety

      relax. poeing is acceptable

    • @kathleencraigie4703
      @kathleencraigie4703 Před 6 lety +2

      We are fearfully and wonderfully made.... ps. 139

    • @shereehardin5783
      @shereehardin5783 Před 6 lety +1

      He's beyond an intelligent being He made us talk and made it so we could create cities with the first Jews (Adam and Eve).

  • @NismoCA
    @NismoCA Před 13 lety

    Thanks for the video sir! It is very informative and provides a good review of respiratory cell mechanics.

  • @HammerdinPally
    @HammerdinPally Před 11 lety

    i love khan... i really do... thank you so much.

  • @MrVickydoc
    @MrVickydoc Před 13 lety

    excellent excellent , i couldnt understand these concepts with such a clarity in my entire life

  • @VampireBloke
    @VampireBloke Před 13 lety

    Wow...I feel as if I've just watched some super movie trailer, except that this was hundred times better! Bravo :D

  • @nouraelzein96
    @nouraelzein96 Před 8 lety

    You make studying really fun!

  • @mrthuvi1
    @mrthuvi1 Před 14 lety

    Thanks you, you just saved my day.

  • @naveenkumartangudu5838
    @naveenkumartangudu5838 Před 11 lety

    really a nice talk about hemoglobin,, its a nice way to explain about things.. best explanation i have ever heard before.. thnks... :)

  • @greasyclean
    @greasyclean Před 13 lety

    incredible explanation. and ur handwriting is out of this world. thank you so much for this!!

  • @xsweetsophx
    @xsweetsophx Před 13 lety

    PLEASE BE MY TEACHER lol!!
    No but seriously thank you so much for this! Makes total sense now :)

  • @nyamaofenganden6526
    @nyamaofenganden6526 Před 9 lety

    Excellent explanation! Thank you very much!!

  • @Tesla_Death_Ray
    @Tesla_Death_Ray Před 11 lety +1

    Y'know, his criticisms of the typical classroom setting are even deeper than mine.

  • @DrunkenBunny7890
    @DrunkenBunny7890 Před 13 lety

    dude, you are epic man! make more vids. your annotations are just sick! (the good kind) xD

  • @hun7a
    @hun7a Před 13 lety

    thank you very much...
    you have help me prepare for my exam
    your good teacher...

  • @Arham1716
    @Arham1716 Před 9 měsíci

    Really... This man is something else❤❤🎉

  • @FrancoisEdmondOfficial

    Thank you!!! Thank you!!! Thank you!!!!

  • @imdadullah8691
    @imdadullah8691 Před 2 lety

    Outstanding lecture for biologists and football match commentary for non biologists.

  • @jacobjin6676
    @jacobjin6676 Před 4 lety

    How amazing human body works ! Who created this creature.

  • @angelbeauty175
    @angelbeauty175 Před 12 lety

    I am currently using your tutorial videos to study for the MCAT. I just want to say thank you for making all this information accessible for all learners out there. You make learning exciting again, just as when we were young.

    • @Voidroamer
      @Voidroamer Před rokem

      hows it goin 10 years later?

    • @GreenHeater
      @GreenHeater Před rokem

      YEAH HOW"S IT GOING DID YOU GRADUATE BRO ARE YOU WORKING AS AN ENGINEER BRO!? TUNE INTO GENZ DUDE!

  • @m00035
    @m00035 Před 12 lety

    AWESOME THANK YOU

  • @hiniebear9939
    @hiniebear9939 Před 12 lety

    Wow. Your amazing!

  • @marinapisaruka8772
    @marinapisaruka8772 Před 11 lety

    Thank you very much. You are brilliant teacher in the whole world. ..

  • @n2zs2
    @n2zs2 Před 14 dny

    Very interesting!

  • @jackbluemusic5417
    @jackbluemusic5417 Před 7 lety

    This video is simply excellent

  • @jeremiah160
    @jeremiah160 Před 11 lety

    BRILLIANT

  • @TaurielleThe
    @TaurielleThe Před 12 lety

    you're such a cool, fun teacher. very hard to find

  • @sugarchowchow
    @sugarchowchow Před 11 lety +2

    You're such a life-saver. This is a great lecture for my incoming Prelim exam on Hematology :) You explained it way better than my book.

  • @lolmomz
    @lolmomz Před 10 lety +1

    You are extremely cool and awesome

  • @TheSashalea
    @TheSashalea Před 12 lety

    Thank you
    You are really a wonderful Professor. My professor doesn't teach as closed as you do.

  • @riseredeos
    @riseredeos Před 11 lety

    Great Videos. you have certainly found a great calling.

  • @justbored9233
    @justbored9233 Před 2 měsíci

    Oh my gosh!!! *mind blown*😮

  • @koshalkumartiwari1037
    @koshalkumartiwari1037 Před 6 lety

    thx for good lecture

  • @mzj3nnyxoxo
    @mzj3nnyxoxo Před 14 lety

    thank you this is wonderful

  • @JejeBabe
    @JejeBabe Před 13 lety

    I LOVE U

  • @imegatrone
    @imegatrone Před 12 lety

    Nice Video That You Share , So Very Nice Thanks You Hemoglobin and its role in the circulatory system

  • @serotonin9218
    @serotonin9218 Před 3 lety +8

    “I have never sat down and counted them”
    Amateur I have spent three decades counting all my cells and I have a number of 54,134 trillion cells.

    • @bslaozora
      @bslaozora Před 3 lety

      That means you still have to count more than 10,000,000 cells per second.

  • @usmansharifmicky
    @usmansharifmicky Před 13 lety

    i found it brilliant, and you are very brilliant as well.

  • @heyyhowyadoin
    @heyyhowyadoin Před 14 lety

    dudeee i havent seen ya since apcalc bc in high school!! haha nice to see your still around.

  • @crvasser
    @crvasser Před 13 lety

    having a hard time following because it keeps buffering and dont know how to make it stop. Information is exactly what I need to prepare for my exam

  • @christinarodriguez297
    @christinarodriguez297 Před 6 lety

    Thank you very much!

  • @SuperMonster62
    @SuperMonster62 Před 11 lety

    amazing vid!!!

  • @MrKHING26
    @MrKHING26 Před 12 lety

    I LOVE YOU
    YOU"RE A BEAST
    THIS HELPED ME SO MUCH
    THANK YOU
    YEAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • @antonscottgoustin
    @antonscottgoustin Před 13 lety

    I learned the concept of allostery from my prof at UC Berkeley, the late Dan Koshland, Sr. Unforgettable, clear, and very intriguing concepts!

  • @kamtha7
    @kamtha7 Před 13 lety

    thank you as always.

  • @elmoteen05
    @elmoteen05 Před 13 lety

    helpful!

  • @haenniTH
    @haenniTH Před 11 lety

    awesome!

  • @enki7777
    @enki7777 Před 12 lety

    You really are an absolutely remarkable lecturer. Wouldn't you write a book of teaching principles to share with professors and teachers around the world? I think i would fit well with your social goals, too... because you could (a) use the proceeds to add to Khan Academy or (b) give the proceeds to another agency working towards the equitable distribution of knowledge using technology, etc...