Helper T cells | Immune system physiology | NCLEX-RN | Khan Academy

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  • Опубликовано: 5 июл 2024
  • Courses on Khan Academy are always 100% free. Start practicing-and saving your progress-now: www.khanacademy.org/science/b...
    Introduction to helper T cells and their role in activating B cells. Created by Sal Khan.
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Комментарии • 436

  • @user-yy1bf5jc8l
    @user-yy1bf5jc8l 9 лет назад +145

    repetition is the best way to learn. I enjoyed this video, thank you.

    • @dianmunoz6402
      @dianmunoz6402 8 лет назад +6

      +myra B Actually, the best way to learn varies from person to person. It may work for you, but for most people the best way to learn is to actively question and understand the concept. If you are trying to learn facts, then yes, repetition is good. :)

  • @lekhaera
    @lekhaera 12 лет назад +39

    You are a legend, I cant believe you explained this concept better in 20 minutes than my lecturers could in 3 hours. :D Love it keep the good work up man. Thank you very very much.

  • @miguelsampaiopeliteiro1634
    @miguelsampaiopeliteiro1634 8 лет назад +131

    Dude please give a lecture about advanced immunology - B and TCR formation, complement system, cytokines, etc. I am studying medicine and you normally have enough substance to achieve greater levels of education but the immunology is under-developed :(

    • @abelhapedras
      @abelhapedras 8 лет назад +10

      I feel you, dude

    • @shalinmodi5791
      @shalinmodi5791 7 лет назад

      duuuuuuuude

    • @deaansugee
      @deaansugee 7 лет назад +9

      My dude I understand what you're saying, digging up advanced immunology information on the internet isn't easy, dude.

    • @scottwilliams3379
      @scottwilliams3379 6 лет назад +7

      What can i say except you're welcome ruclips.net/video/LSYED-7riNY/видео.html

    • @2012jaysean
      @2012jaysean 4 года назад

      Miguel Sampaio Peliteiro dude thanks for the warning man

  • @amenalyasiry1194
    @amenalyasiry1194 8 лет назад +34

    i love your existence KHAN! YOU ARE THE MOST AMAZING TEACHER IN THE WORLD ! Thank you for everything you have done for us college students !!!!

    • @vanityromano8030
      @vanityromano8030 3 года назад +1

      This is why I decided to donate, while it is only $5 a month, together we can make sure his platform is here for everyone. Even my 3rd grader learns from him!!!

  • @61sman16
    @61sman16 12 лет назад +16

    "hey i found this shady thing floating around" love the way you make difficult material enjoyable to understand

  • @aola7
    @aola7 13 лет назад +7

    i had an incredible professor for my immunology course, who happens to be one of the top faculties in my university. Your lecture on the Helper T cells was perfect. I never thought that I could compare anybody to my immunology professor, but you are just as good. You have talent for teaching that very few people have and this is why you are so successful.

  • @krystlebechtel7595
    @krystlebechtel7595 8 лет назад +30

    Great video! this isn't easy to understand, I enjoy the redundant information since introducing this subject once into the mind doesn't cut it. Keep up the videos!

  • @mclenlac
    @mclenlac 12 лет назад +30

    "I found this thing, i killed it, here's a part of it"

  • @mtbmax21
    @mtbmax21 12 лет назад +6

    "this guy, andthis guy, actually do stuff".
    words i understand, perfect :)
    thank you x

  • @andyl3655
    @andyl3655 4 года назад +2

    I am a Ph.D. student in Biochemistry/Molecular Cancer Biology, recently checking some interesting vids here specifically for interferon-gamma/cytokines induced immunity invasion which triggered tumorigenesis and happens to run into your video, very neat and easily illustrated (since immunology is not my background lol) keep up the great work and probably will check out more later!

  • @ANeeDFoRSleep
    @ANeeDFoRSleep 7 лет назад +4

    Exam tomorrow, love from New Zealand buddy, you have saved me at least 3x this year. Many thanks

  • @jordanwholt1995
    @jordanwholt1995 10 лет назад +2

    This video is going to allow me to get a A++ on my microbiology test tomorrow...thank you!!! GOD BLESS YOU!!!!

  • @ebuhkary
    @ebuhkary 10 лет назад +6

    It was like a movie,, love the ending though.
    Thank u so much , 3 hours ago I didnt know a thing in immunity,,

  • @shashinygreeny
    @shashinygreeny 12 лет назад

    You're a life saver! My biology teacher sucks and I have my biology finals tomorrow! But thank God for someone like you! :D One of the best ways to help people, I swear! :)

  • @kvillamar
    @kvillamar 12 лет назад +1

    all of your videos related to the immune system are simply the best. you covered everything that my book talked about, and it all comprehensive and intereseting.
    thanks for your knowledge and motivation!

  • @dufo4766
    @dufo4766 7 лет назад +1

    Nice video, especially for beginners. However, It can also help you gloss over your knowledge for more advanced viewers too! Congrats for your efforts and keep up!

  • @chickenwang4eva
    @chickenwang4eva 13 лет назад +5

    7:36 - Beginning of what a Helper - T cell is.

  • @carolmarry1439
    @carolmarry1439 4 года назад +1

    Thank you it was so helpful I have a biology test tomorrow! I hate high school 🤦🏻‍♀️

  • @srodier1
    @srodier1 13 лет назад +1

    Thank you so much! I actually understand this stuff now. I appreciate your time with this. You ROCK!

  • @midnightstarfish91
    @midnightstarfish91 12 лет назад

    you are amazing. Thank you so much for taking the time out to help us mere mortals.
    really hope somewhere out there you are getting the credit that you truly deserve. again thank you.

  • @lauraduberley
    @lauraduberley 5 лет назад

    after searching all over the internet for a good explanation about this subject, in english and portuguese(my first language), I could FINALLY understand!!! Thank you so much!

  • @Mrcelticspatriots
    @Mrcelticspatriots 10 лет назад +2

    Thanks you so much - you explain difficult topics in way which that makes them so much clearer :)

  • @sarahjane9517
    @sarahjane9517 3 года назад

    I would not get through undergrad health science without your channel! Thank you so much!!!

  • @unknownplayer03
    @unknownplayer03 12 лет назад +11

    love these

  • @sthrani2
    @sthrani2 12 лет назад

    you know I watch any of your videos for detail understading for my pathophysiology class and it helps me a lot!! and trust me you have the most amazing voice that anyone can never get bored listening
    !!

  • @fallapallala
    @fallapallala 13 лет назад +2

    Dude i wish my professors were as good as you. And i am a medicine student. you rock.

  • @redactedpizza2278
    @redactedpizza2278 5 лет назад +1

    You have no idea how much these videos help me! Love your work :)

  • @sharonabel4354
    @sharonabel4354 12 лет назад

    All I can say is thank god I have found your video's, my preferred learning style is not reading from a text book, I don't take anything in!!!! but now I understand what I am learning. Thank you

  • @dzuke3127
    @dzuke3127 6 лет назад

    This is so helpful! Thank you! I FINALLY UNDERSTAND!!!

  • @Mazyone_
    @Mazyone_ 9 лет назад +1

    I really appreciate your videos, they're really helping me a lot.. I'm a 1st year medical student

  • @LadyHelenaRavenclaw
    @LadyHelenaRavenclaw 11 лет назад +1

    I love you so much. I have two days until my final, and I'm finally starting to understand this. All because of you, as always

  • @icecreamlover1948
    @icecreamlover1948 9 лет назад

    Thank you for the videos! I am learning a ton of stuff, this explains better than my college because you show pictures and actually explain it! I LOVE IT LOVE IT LOVE IT THANKS A TON XOXO KHAN ACADEMY

  • @fratisanta
    @fratisanta 13 лет назад

    Thank you soooo much for this video!! I've read this like three times in my immune book and it finally made sense when I watched this video :)

  • @quisha4008
    @quisha4008 6 лет назад

    better than how my bio teacher explains this. THANK U SO MUCH YOU ARE A LIFE SAVER. YOU REVIVED MY SUFFERING GRADES

  • @bin0saur
    @bin0saur 13 лет назад

    these videos are amazing i have an exam in a couple days and these videos are better than lecture notes and my lecturer.
    THank you for putting these up

  • @TheKojaNc
    @TheKojaNc 12 лет назад +6

    "I found this thing, I killed it. Here's a part of it." Hah, get it man.

  • @tapasyachangkakati3345
    @tapasyachangkakati3345 8 лет назад

    The teacher is amazing! And the videos are so helpful.Thank you so much for making such videos! :)

  • @seanpeters8551
    @seanpeters8551 3 года назад

    I literally did not understand B and T cells at all under until i stumbled upon your video. Thank you so much!

  • @Chunnkadavid
    @Chunnkadavid 10 лет назад +2

    Thank you for your precious Video!

  • @shahariahussain
    @shahariahussain 6 лет назад

    Perfect speed, allowed me to make notes while watching the video!

  • @LavenderWhite
    @LavenderWhite 11 лет назад

    I wish u were my micro teacher! I cant understand his lectures, but then after watching ur videos everything makes sense! thanks so much!

  • @ShrimplyPibblesJr
    @ShrimplyPibblesJr 12 лет назад

    There are a lot more details I need to know, but these videos have really put the big picture together for me.

  • @esmeralda181000
    @esmeralda181000 11 лет назад

    This is great !
    I don't normally like or leave reviews on youtube ! But thank you soooo much !! You r are GREAT!

  • @tumpiliksye
    @tumpiliksye 13 лет назад

    Your videos make more sense than my lectures :) .. Now I am confident with my test on Wednesday. Thank you !!!

  • @Howrrang
    @Howrrang 11 лет назад +3

    haha i love how he put fun into biology makes me to remember things even better.
    "this guy and this guy actually do stuff " hahaaha

  • @speng01
    @speng01 14 лет назад

    You did an excellent job. We need mroe instructors like you. Thank you.

  • @Audrey_Yo
    @Audrey_Yo 7 лет назад

    mysterious n amazing way our body is created! and always great teaching from Sal, big thanx^^

  • @ngonsainti
    @ngonsainti 9 лет назад +10

    Thank you so such for all this work. My daughter is lucky she can understand English, because her classes in our country (France) are so badly taught -not all but this year the biology one is particularly bad- that she learns things on RUclips. The difference between these cells was so poorly explained that she was all confused and now she's fine.

  • @RM913
    @RM913 10 лет назад

    your videos are a blessing.. thank you so much...

  • @anushs86
    @anushs86 11 лет назад +1

    Great. It has finally cleared it out for me. so much interesting than the boring lectures in my university. I hope that there will be more lecturers like you!

  • @let4be
    @let4be 4 года назад

    Big Big Thanks for those videos, such interesting topic presented in available and understandable way. Amazing!

  • @vecter
    @vecter 5 лет назад

    Wow that safety mechanism is beautiful. Hard to believe the evolution created all of this. Yet it did! Amazing!

  • @yetundeolawale6504
    @yetundeolawale6504 8 лет назад

    Thanks for the video. it's highly educating. It can be used in a virtual laboratory.

  • @cara.bella15
    @cara.bella15 8 месяцев назад

    Absolutely godsent video, you have answered all my questions

  • @daniels3784
    @daniels3784 11 лет назад +1

    I've watched a few of your vids and based on the comments, I think you may be the most liked man on the internet

  • @lauraarmstrong7748
    @lauraarmstrong7748 8 лет назад +81

    watch in speed 1.25 and its bearable,
    great information, way too slow and repetitive

    • @Checkersss
      @Checkersss 8 лет назад +21

      some of us like the repetition. helps us remember it better

    • @lauraarmstrong7748
      @lauraarmstrong7748 8 лет назад +5

      yeah i get that, i just find it annoying (:

    • @Dan-yk9ft
      @Dan-yk9ft 8 лет назад +1

      OMG thank you. Genuinely found this so helpful XD

    • @Fana3981
      @Fana3981 8 лет назад

      how do you change the speed?

    • @Dan-yk9ft
      @Dan-yk9ft 8 лет назад +1

      go to the settings bit where you can chose the definition and there is a speed option above the definition option

  • @alitali94
    @alitali94 12 лет назад

    Thiscmakes for a great recap on my study. Thanks!

  • @Boltazer
    @Boltazer 11 лет назад

    @khanacademy bless you for doing these videos.people these days dont like sharing knowledge.

  • @muruganmadaswami3127
    @muruganmadaswami3127 7 лет назад

    this videos makes .... studies .. amazing ...and interesting

  • @RiMzYRiza
    @RiMzYRiza 11 лет назад +1

    OMG This is awesome! Just what I needed!!! Thanks :)

  • @look4keith
    @look4keith 13 лет назад

    Thank you! Thank you! Thank you!
    I am finally starting to understand!!
    I could open-mouth kiss you right now.

  • @candycane0710
    @candycane0710 13 лет назад +1

    you guys are amazing! i leanred soooo much for my yr 12 final exams :D

  • @Star22633
    @Star22633 11 лет назад

    you explain this SO much better then my lecture! she started going on about how t cells are like university student in that only some of them pass the test.....

  • @blackspaniard15
    @blackspaniard15 10 лет назад

    Your videos rock!!! Thanks for the great info!!

  • @Djalitana
    @Djalitana 13 лет назад

    this is the best vid about immune system on the web.

  • @Nazih09
    @Nazih09 12 лет назад

    is there anything you are not good at!? you're amazing!!!! thanks!

  • @goldsborograms
    @goldsborograms 11 лет назад

    I found this video when I was taking A & P II and it was a life saver!! Now I am taking micro and I referred back to your video for a refresher on immunity!! You are the best!!

  • @TojikaxX
    @TojikaxX 13 лет назад

    hey, thanks so much! your videos are so helpful.. im studying now and listening to your video at the same time! its so helpful ^^

  • @nice18able
    @nice18able 11 лет назад +1

    I can't thank you enough for saving my life!!!!!

  • @ColouredPony11
    @ColouredPony11 11 лет назад

    Thank you for clarifying my AS biology topic!

  • @sachie2323
    @sachie2323 5 лет назад

    Best video ever!! Thank you so much!!!

  • @shiney94
    @shiney94 11 лет назад

    Yes. I read from my textbook that there are two types of helper T cells. One that activates B-cells into plasma cells, and the other that activates cytotoxic t cells.

  • @sciencenerd7639
    @sciencenerd7639 2 года назад

    Very helpful, thank you!

  • @cwaddle
    @cwaddle 12 лет назад

    i'm liking every video in this series. awesome!

  • @slushpuddle11
    @slushpuddle11 13 лет назад

    these are awesome. thanks so much! so much better than my text book.

  • @fleshcookie
    @fleshcookie 9 лет назад +88

    half a million views in 5 years. Taylor Swift gets that many in 5 days. Imagine if it were the other way around.

    • @iloveu975
      @iloveu975 8 лет назад +6

      +fleshcookie I know, it ought to be the other way round!

    • @prabhanshukatiyar4635
      @prabhanshukatiyar4635 8 лет назад +7

      +fleshcookie people like to waste tym rather than studying

    • @GoBlue7171
      @GoBlue7171 7 лет назад +5

      because studying is boring

    • @muskaan_aryan
      @muskaan_aryan 6 лет назад +4

      It is because stupidness is the easiest to achieve!

    • @dummysalami
      @dummysalami 5 лет назад +11

      dude............. taylor swift song is like usually 3mins long and this video explains a hard concept in 20mins..... and not everyone on earth studies pharmacy/medicine/genetics...

  • @maxlax63
    @maxlax63 12 лет назад

    You take the lame out of bio. Watching an animation that resembles Space Invaders helps me learn. Thank you so much for making the world smarter!

  • @norwayte
    @norwayte 14 лет назад +1

    Good. Could you do a video about a special immune reaction: autoimmune diseases?!
    Thanks.

  • @isaitalvarado5727
    @isaitalvarado5727 2 года назад

    thank you Sal youre the best.

  • @backstreetfan2887
    @backstreetfan2887 3 года назад

    very helpful review, thank you Khan Academy

  • @2391jessie
    @2391jessie 2 года назад

    Very IN DEPTH!

  • @misterbreining
    @misterbreining 12 лет назад

    Helped so much, thank you so much!

  • @melao75c
    @melao75c 13 лет назад +2

    Thank you for doing this, I love Khan Academy!!!
    I just wanted to let you know that I think you said or insinuated that the B-cell phagocytosed the pathogen and then presented it on the MHCII molecule. However, I don't think B-cells ever phagocytose and kill microbes.
    Either way this video was very helpful. Thank you!!

  • @jibjub2121
    @jibjub2121 11 лет назад

    Thanks, this video is perfect for revision, so awesome

  • @nikandslim
    @nikandslim 12 лет назад

    great way to teach about T and B cells! my teacher made it so confusing!

  • @mironavisan
    @mironavisan 3 года назад

    OMG. This is such an awesome video. Thank you

  • @itsJonasBrotherlove
    @itsJonasBrotherlove 10 лет назад

    wow this helped a lot thanks!

  • @oladog
    @oladog 11 лет назад

    Great lecture. Thank you!

  • @Paikeseratas
    @Paikeseratas 13 лет назад

    Thank you, perfect!

  • @1988nightrider
    @1988nightrider 12 лет назад

    Haha! Got this this on one on my 3 questions for oral exam in histology! This really helped me;D Thanks for posting!

  • @jordan8895
    @jordan8895 9 лет назад

    your vids are amazing! thanks!!

  • @calvinprice1204
    @calvinprice1204 6 лет назад

    Thanx Bro, a lot better than the prof I have here.

  • @alexbee6747
    @alexbee6747 10 лет назад

    Dear @khanacademy, thankyou for always being my helper t cell

  • @omganotherjen
    @omganotherjen 2 года назад

    thank you so much! so helpful!

  • @10arkann
    @10arkann 12 лет назад

    THANK YOU! THIS IS AMAZING!!

  • @notnilccm
    @notnilccm 13 лет назад

    Thank you, excellent presentation

  • @MyEnglishExpert
    @MyEnglishExpert 9 лет назад

    Hi there. Nice job on your ed videos. I am wondering if you can tell me what kind of tablet you use to draw on. It has a nice effect.

  • @najibuzbak9792
    @najibuzbak9792 11 лет назад

    i really like the videos that you post and wanted to know if you can post some videos about transfusion medicine, ABO, lewis,RH blood grouping

  • @Zoom297
    @Zoom297 13 лет назад

    you have made my life so easy love you man you are the best

  • @suomynonaanonymous
    @suomynonaanonymous 8 лет назад +3

    I LOVE YOUR VIDEOS