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.
+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. :)
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.
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!!!
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 :(
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!
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!
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! :)
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
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 !!
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!
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!
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. 😀
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
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.....
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.
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!!
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!
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.
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?
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!
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!
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!!
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 !!!!
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 TH-cam. The difference between these cells was so poorly explained that she was all confused and now she's fine.
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?
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 :)
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.
repetition is the best way to learn. I enjoyed this video, thank you.
+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. :)
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.
"hey i found this shady thing floating around" love the way you make difficult material enjoyable to understand
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 !!!!
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!!!
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 :(
I feel you, dude
duuuuuuuude
My dude I understand what you're saying, digging up advanced immunology information on the internet isn't easy, dude.
What can i say except you're welcome th-cam.com/video/LSYED-7riNY/w-d-xo.html
Miguel Sampaio Peliteiro dude thanks for the warning man
"this guy, andthis guy, actually do stuff".
words i understand, perfect :)
thank you x
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!
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!
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! :)
Dude i wish my professors were as good as you. And i am a medicine student. you rock.
Exam tomorrow, love from New Zealand buddy, you have saved me at least 3x this year. Many thanks
I wish u were my micro teacher! I cant understand his lectures, but then after watching ur videos everything makes sense! thanks so much!
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
This video is going to allow me to get a A++ on my microbiology test tomorrow...thank you!!! GOD BLESS YOU!!!!
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
"I found this thing, i killed it, here's a part of it"
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
!!
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!
It was like a movie,, love the ending though.
Thank u so much , 3 hours ago I didnt know a thing in immunity,,
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!
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. 😀
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
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!
Thank you it was so helpful I have a biology test tomorrow! I hate high school 🤦🏻♀️
Wow that safety mechanism is beautiful. Hard to believe the evolution created all of this. Yet it did! Amazing!
@khanacademy bless you for doing these videos.people these days dont like sharing knowledge.
I literally did not understand B and T cells at all under until i stumbled upon your video. Thank you so much!
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
7:36 - Beginning of what a Helper - T cell is.
This is great !
I don't normally like or leave reviews on youtube ! But thank you soooo much !! You r are GREAT!
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.....
There are a lot more details I need to know, but these videos have really put the big picture together for me.
Thank you so much! I actually understand this stuff now. I appreciate your time with this. You ROCK!
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
this is the best vid about immune system on the web.
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.
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!!
You still around today?
Your videos make more sense than my lectures :) .. Now I am confident with my test on Wednesday. Thank you !!!
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!
Nice Video Introduction to helper T cells and their role in activating B cells That You Share , So Very Nice Thanks You
I love that he's got a cold and is doing a lecture on antibodies.
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.
you guys are amazing! i leanred soooo much for my yr 12 final exams :D
You have no idea how much these videos help me! Love your work :)
love these
he is better than my teacher
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?
OMG This is awesome! Just what I needed!!! Thanks :)
You did an excellent job. We need mroe instructors like you. Thank you.
this videos makes .... studies .. amazing ...and interesting
omg...!!!!!!! This is superb..!!! Thankyou thankyou thankyou
I really appreciate your videos, they're really helping me a lot.. I'm a 1st year medical student
Perfect speed, allowed me to make notes while watching the video!
is there anything you are not good at!? you're amazing!!!! thanks!
Thank you! Thank you! Thank you!
I am finally starting to understand!!
I could open-mouth kiss you right now.
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!
Dear @khanacademy, thankyou for always being my helper t cell
i'm liking every video in this series. awesome!
Good, good, good, good, good.
The best!
you have made my life so easy love you man you are the best
I would not get through undergrad health science without your channel! Thank you so much!!!
I can't thank you enough for saving my life!!!!!
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 :)
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!
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!!
better than how my bio teacher explains this. THANK U SO MUCH YOU ARE A LIFE SAVER. YOU REVIVED MY SUFFERING GRADES
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 !!!!
Absolutely godsent video, you have answered all my questions
Haha! Got this this on one on my 3 questions for oral exam in histology! This really helped me;D Thanks for posting!
these are awesome. thanks so much! so much better than my text book.
great way to teach about T and B cells! my teacher made it so confusing!
LIFE SAVER SAL. EVERY TIME.
Your videos saved me for my finals! Thank you so much for taking the time to share your knowledge!
thank you so much Khanacademy and you for your lectures you make everything so easy to understand. Hell I like micobiology now.
"I found this thing, I killed it. Here's a part of it." Hah, get it man.
i hope i get my extra points in class thanks to this video, ill see in 5 hours :)
watch in speed 1.25 and its bearable,
great information, way too slow and repetitive
some of us like the repetition. helps us remember it better
yeah i get that, i just find it annoying (:
OMG thank you. Genuinely found this so helpful XD
how do you change the speed?
go to the settings bit where you can chose the definition and there is a speed option above the definition option
fantastic. this lays things out so clearly. the book doesn't do a good job of compartmentalizing information.
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 TH-cam. The difference between these cells was so poorly explained that she was all confused and now she's fine.
French pedagogy is tough to survive.
seriously......nothing better than this
Thanx Bro, a lot better than the prof I have here.
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?
Cytotoxic t cells
Thanks you so much - you explain difficult topics in way which that makes them so much clearer :)
Thiscmakes for a great recap on my study. Thanks!
I like my professor, but this video was much more clear to me.
Thanks, this video is perfect for revision, so awesome
thank you very much, This video is very helpful. you rock.
I passed my examz very easily after watching your VD!! THANKZ
hey, thanks so much! your videos are so helpful.. im studying now and listening to your video at the same time! its so helpful ^^
thank you very much i understand this hard topic because of you so thanks again with my respect
your videos are a blessing.. thank you so much...
Good. Could you do a video about a special immune reaction: autoimmune diseases?!
Thanks.
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?
This is so helpful! Thank you! I FINALLY UNDERSTAND!!!
Best video ever!! Thank you so much!!!
mysterious n amazing way our body is created! and always great teaching from Sal, big thanx^^
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 :)
Very IN DEPTH!
thank you, thank you, thank you!!!! You really saved me!!!!
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