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.
@user-yy1bf5jc8l9 жыл бұрын
repetition is the best way to learn. I enjoyed this video, thank you.
@dianmunoz64029 жыл бұрын
+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. :)
@aola713 жыл бұрын
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.
@61sman1613 жыл бұрын
"hey i found this shady thing floating around" love the way you make difficult material enjoyable to understand
@amenalyasiry11949 жыл бұрын
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 !!!!
@vanityromano80303 жыл бұрын
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!!!
@miguelsampaiopeliteiro16348 жыл бұрын
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 :(
@abelhapedras8 жыл бұрын
I feel you, dude
@shalinmodi57918 жыл бұрын
duuuuuuuude
@deaansugee7 жыл бұрын
My dude I understand what you're saying, digging up advanced immunology information on the internet isn't easy, dude.
@scottwilliams33796 жыл бұрын
What can i say except you're welcome kzbin.info/www/bejne/goS8dndjbNechLs
@2012jaysean4 жыл бұрын
Miguel Sampaio Peliteiro dude thanks for the warning man
@mtbmax2112 жыл бұрын
"this guy, andthis guy, actually do stuff". words i understand, perfect :) thank you x
@andyl36554 жыл бұрын
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!
@krystlebechtel75958 жыл бұрын
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!
@shashinygreeny12 жыл бұрын
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! :)
@fallapallala13 жыл бұрын
Dude i wish my professors were as good as you. And i am a medicine student. you rock.
@ANeeDFoRSleep8 жыл бұрын
Exam tomorrow, love from New Zealand buddy, you have saved me at least 3x this year. Many thanks
@LavenderWhite12 жыл бұрын
I wish u were my micro teacher! I cant understand his lectures, but then after watching ur videos everything makes sense! thanks so much!
@sharonabel435412 жыл бұрын
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
@jordanwholt199510 жыл бұрын
This video is going to allow me to get a A++ on my microbiology test tomorrow...thank you!!! GOD BLESS YOU!!!!
@daniels378411 жыл бұрын
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
@mclenlac12 жыл бұрын
"I found this thing, i killed it, here's a part of it"
@sthrani212 жыл бұрын
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 !!
@kvillamar13 жыл бұрын
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!
@ebuhkary10 жыл бұрын
It was like a movie,, love the ending though. Thank u so much , 3 hours ago I didnt know a thing in immunity,,
@lauraduberley6 жыл бұрын
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!
@yifangwei3 ай бұрын
To Salman Khan Even through I'm still in grade school, but I am able to understand a lot of this. I've been a member of KA for a year, and I enjoy the way KA makes learning seem so simple. I thank you, Sal, for creating such an amazing website. I would have paid millions just to watch 5 minutes of you teaching. I love you and your academy and I support you on your amazing work. Keep on doing the wonderful job! Yours Sincerely, Lily H. Alden P.S. If you are still making videos, please don't make anything stop you! Do your best to educate people. 😀
@LadyHelenaRavenclaw11 жыл бұрын
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
@maxlax6312 жыл бұрын
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!
@carolmarry14394 жыл бұрын
Thank you it was so helpful I have a biology test tomorrow! I hate high school 🤦🏻♀️
@vecter6 жыл бұрын
Wow that safety mechanism is beautiful. Hard to believe the evolution created all of this. Yet it did! Amazing!
@Boltazer12 жыл бұрын
@khanacademy bless you for doing these videos.people these days dont like sharing knowledge.
@seanpeters85513 жыл бұрын
I literally did not understand B and T cells at all under until i stumbled upon your video. Thank you so much!
@bin0saur13 жыл бұрын
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
@chickenwang4eva13 жыл бұрын
7:36 - Beginning of what a Helper - T cell is.
@esmeralda18100012 жыл бұрын
This is great ! I don't normally like or leave reviews on youtube ! But thank you soooo much !! You r are GREAT!
@Star2263311 жыл бұрын
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.....
@ShrimplyPibblesJr13 жыл бұрын
There are a lot more details I need to know, but these videos have really put the big picture together for me.
@srodier113 жыл бұрын
Thank you so much! I actually understand this stuff now. I appreciate your time with this. You ROCK!
@Howrrang11 жыл бұрын
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
@Djalitana13 жыл бұрын
this is the best vid about immune system on the web.
@shiney9411 жыл бұрын
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.
@goldsborograms12 жыл бұрын
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!!
@NickyMachiavelli Жыл бұрын
You still around today?
@tumpiliksye14 жыл бұрын
Your videos make more sense than my lectures :) .. Now I am confident with my test on Wednesday. Thank you !!!
@tiffewong13 жыл бұрын
thank you so much!!!!!! why can't my professors give me this information and clearly during our lectures? I shouldn't need to youtube it. BUT I'm grateful for your lectures!
@imegatrone13 жыл бұрын
Nice Video Introduction to helper T cells and their role in activating B cells That You Share , So Very Nice Thanks You
@xanderx312 жыл бұрын
I love that he's got a cold and is doing a lecture on antibodies.
@midnightstarfish9113 жыл бұрын
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.
@candycane071013 жыл бұрын
you guys are amazing! i leanred soooo much for my yr 12 final exams :D
@redactedpizza22785 жыл бұрын
You have no idea how much these videos help me! Love your work :)
@unknownplayer0312 жыл бұрын
love these
@asterakamaran62784 жыл бұрын
he is better than my teacher
@munozali1 Жыл бұрын
Great point about needing two types of cells, b and helper t cells to bind to specific antigents of the same pathogen in order to activate the B cell! This process reduces the likelihood of a B cell mistakenly producing antibodies against our own cells or cells our bodies need. Is there such a fail-safe process when it comes to cell-mediated immunity?
@RiMzYRiza12 жыл бұрын
OMG This is awesome! Just what I needed!!! Thanks :)
@speng0114 жыл бұрын
You did an excellent job. We need mroe instructors like you. Thank you.
@muruganmadaswami31278 жыл бұрын
this videos makes .... studies .. amazing ...and interesting
@neadil14 жыл бұрын
omg...!!!!!!! This is superb..!!! Thankyou thankyou thankyou
@Mazyone_9 жыл бұрын
I really appreciate your videos, they're really helping me a lot.. I'm a 1st year medical student
@shahariahussain7 жыл бұрын
Perfect speed, allowed me to make notes while watching the video!
@Nazih0912 жыл бұрын
is there anything you are not good at!? you're amazing!!!! thanks!
@look4keith13 жыл бұрын
Thank you! Thank you! Thank you! I am finally starting to understand!! I could open-mouth kiss you right now.
@anushs8612 жыл бұрын
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!
@alexbee674711 жыл бұрын
Dear @khanacademy, thankyou for always being my helper t cell
@cwaddle13 жыл бұрын
i'm liking every video in this series. awesome!
@marianapetkova3252 жыл бұрын
Good, good, good, good, good. The best!
@Zoom29713 жыл бұрын
you have made my life so easy love you man you are the best
@sarahjane95173 жыл бұрын
I would not get through undergrad health science without your channel! Thank you so much!!!
@nice18able12 жыл бұрын
I can't thank you enough for saving my life!!!!!
@fratisanta13 жыл бұрын
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 :)
@dufo47668 жыл бұрын
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!
@melao75c13 жыл бұрын
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!!
@quisha40086 жыл бұрын
better than how my bio teacher explains this. THANK U SO MUCH YOU ARE A LIFE SAVER. YOU REVIVED MY SUFFERING GRADES
@Asvi3111 жыл бұрын
heyyy thank you soooo much my teacher told us to research ourselves about T Lymphocytes and i was sooo scared i wouldnt understand anything unless someone explains but this video soo good i did understand THANK YOU !!!!
@cara.bella15 Жыл бұрын
Absolutely godsent video, you have answered all my questions
@1988nightrider13 жыл бұрын
Haha! Got this this on one on my 3 questions for oral exam in histology! This really helped me;D Thanks for posting!
@slushpuddle1114 жыл бұрын
these are awesome. thanks so much! so much better than my text book.
@nikandslim13 жыл бұрын
great way to teach about T and B cells! my teacher made it so confusing!
@gracenie38358 жыл бұрын
LIFE SAVER SAL. EVERY TIME.
@dksamara0712 жыл бұрын
Your videos saved me for my finals! Thank you so much for taking the time to share your knowledge!
@leonardwashington849112 жыл бұрын
thank you so much Khanacademy and you for your lectures you make everything so easy to understand. Hell I like micobiology now.
@TheKojaNc13 жыл бұрын
"I found this thing, I killed it. Here's a part of it." Hah, get it man.
@justynad13 жыл бұрын
i hope i get my extra points in class thanks to this video, ill see in 5 hours :)
@lauraarmstrong77488 жыл бұрын
watch in speed 1.25 and its bearable, great information, way too slow and repetitive
@Checkersss8 жыл бұрын
some of us like the repetition. helps us remember it better
@lauraarmstrong77488 жыл бұрын
yeah i get that, i just find it annoying (:
@Dan-yk9ft8 жыл бұрын
OMG thank you. Genuinely found this so helpful XD
@Fana39818 жыл бұрын
how do you change the speed?
@Dan-yk9ft8 жыл бұрын
go to the settings bit where you can chose the definition and there is a speed option above the definition option
@AMScruff13 жыл бұрын
fantastic. this lays things out so clearly. the book doesn't do a good job of compartmentalizing information.
@ngonsainti10 жыл бұрын
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 KZbin. The difference between these cells was so poorly explained that she was all confused and now she's fine.
@rebeccatagett7317 жыл бұрын
French pedagogy is tough to survive.
@vaishali38092 жыл бұрын
seriously......nothing better than this
@calvinprice12047 жыл бұрын
Thanx Bro, a lot better than the prof I have here.
@Abominatrix6507 жыл бұрын
Hey Sal? You mentioned 3 types of lymphocytes at 6:00 but you only mentioned 2 of them - B cells and T cells. Did you also mean to include the Natural Killer cells?
@alstewart38095 жыл бұрын
Cytotoxic t cells
@Mrcelticspatriots10 жыл бұрын
Thanks you so much - you explain difficult topics in way which that makes them so much clearer :)
@alitali9412 жыл бұрын
Thiscmakes for a great recap on my study. Thanks!
@clutchisgood12 жыл бұрын
I like my professor, but this video was much more clear to me.
@jibjub212111 жыл бұрын
Thanks, this video is perfect for revision, so awesome
@xuanxuanwang13 жыл бұрын
thank you very much, This video is very helpful. you rock.
@MrTharshanan13 жыл бұрын
I passed my examz very easily after watching your VD!! THANKZ
@Charmienails_official13 жыл бұрын
hey, thanks so much! your videos are so helpful.. im studying now and listening to your video at the same time! its so helpful ^^
@samer89alsheikh12 жыл бұрын
thank you very much i understand this hard topic because of you so thanks again with my respect
@RM91310 жыл бұрын
your videos are a blessing.. thank you so much...
@norwayte15 жыл бұрын
Good. Could you do a video about a special immune reaction: autoimmune diseases?! Thanks.
@justnichols12 жыл бұрын
what do the cytokines released by the Th cell do? Do they help activate the B cell as well? Or do they do a whole bunch of stuff?
@dzuke31276 жыл бұрын
This is so helpful! Thank you! I FINALLY UNDERSTAND!!!
@sachie23235 жыл бұрын
Best video ever!! Thank you so much!!!
@Audrey_Yo8 жыл бұрын
mysterious n amazing way our body is created! and always great teaching from Sal, big thanx^^
@bobomac201211 жыл бұрын
my understanding is that without the APCs, T or B cells are not able to initiate their actions such as producing antibodies or differentiate to Tc or Tm. i hope this helps, good luck :)
@2391jessie3 жыл бұрын
Very IN DEPTH!
@bobomac201211 жыл бұрын
thank you, thank you, thank you!!!! You really saved me!!!!
@najibuzbak979211 жыл бұрын
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