Funny chest, is so wide-- and guts area-- T U B-- influence of bones-- positions. You know nothin-- about infusion-- osmosis. Head-- flows blood down-- first. Ancient Alpha Beta-- First 2-- which means-- grids.
I love Khan Academy Videos...You guys are the best at explaining things I need to know in a refreshing and comprehensive manner; without all the extra music, mumbling and distracting qualities that can be in other videos...Can't say enough how much you guys help me. THANK YOU :)
T cells mature in the Thymus and originate from the bone marrow, according to my test. This is probably not too important though, thank you for the review.
This explanation helped me so much. Its clear, step by step and emphasizes the areas where people might get confused. I used to mix up the replication wherein they will get different receptors (for diversity) with the replication wherein they will have the same receptor (for actually responding to the infection) all cleared up now. thanks
I just want to thank you for using easy english in the explanation haha. I’m german but somehow there is no video in german that explains this topic as good as you guys. I’m so thankful that i could understand anything you said cuz you didn’t use many complicated expressions
You forgot T-dependent B-cells and T independent. T independent B cells are the only ones that can bind to the antigens on the bacterium's surface (epitopes like LPS and proteins. Other B-cells have to have the T-helper cells that differentiated out present antigens and stimulate them. Other than that, great video! You guys seriously help so many people!
You didn't actually talk about the clonal selection theory which talks about the diversity of antibodies and how their constant portion is made from a different gene than the variable segment.
Hi there. My understanding is that with B-cells (and thus, humoral immunity), APC's do not play a role. Yet in your presentation, you reference APC's presenting bacteria to B-cells. Could you clarify?
No, in this video, his drawing shows that APC's are presenting the antigen to the T-cells. Also, this is probably way overdue, but B-cells can be APC's themselves.
Hey you first tell that the dendritic cells present the bacterial pieces to B and T cells and later you tell that the B cells don't actually need the antigen presenting cells they are able to react to the bacteria directly. Is there any mistake in the first statement? BTW the video is really nice.
If i understand the video correctly, you are saying that antibody production is just a matter of luck? And if you were not lucky enough to have a B-cell that has the correct antibody for a specific antigen, then you just die? Would you please explain this? I am super confused because this video ( ruclips.net/video/Bl6vWLqL2D0/видео.html ) kind of suggests that antibody production is not a matter of luck, but rather a matter of the body creating a specific antibody for a specific antigen, rather than having an antigen just fitting an antibody by a chance of luck.
When army of same B cells or T cells are produced....then as they are same bcz they r produced by colonial section......but the antibodies produced by them or the activated T cells produced by them same?????.....and if they are same it means they require only one type of antigen so one gene codes for them???????.....r they produce different kind of antibodies????I am getting confuse about this point....plzzz tell me??????
Im-- gay, or of with! Kaldean and Koine Egyptian languages. No BDZKL-- this is, two celled! DNA-- > DZNA-- This is, not internal medicine! You should learn, language, before speak? MEDZ TDZKL-- This is, me, and my-- chest cells or, T-cells. Shoulders are, attached as the, T- branches of, arms -- lungs.
I am quite offended, was this all that the author had to know in his med school? If this video is intended for schoolkids, please dont pretend it is medicine. You simplified it so much that many things are just wrong, you also forgot to mention almost everything. Its like putting the entire bible in a sticky note: Some dude died for other peoples sins and got resurrected by his father who lives in fluffy clouds and murders the whole world from time to time. I think Christians would not like my short version of the bible, and that is how I feel about this video.
Both t and b cells are formed in bone marrow but t cells are matured in thymus
Funny chest, is so wide-- and guts area-- T U B-- influence of bones-- positions. You know nothin-- about infusion-- osmosis. Head-- flows blood down-- first. Ancient Alpha Beta-- First 2-- which means-- grids.
Tyvm for the additional info bro
Dont lie u learned that from the previous video XD
I love Khan Academy Videos...You guys are the best at explaining things I need to know in a refreshing and comprehensive manner; without all the extra music, mumbling and distracting qualities that can be in other videos...Can't say enough how much you guys help me. THANK YOU :)
I learned statistics from Khan academy videos more than I learned from my uni lecturers! Thank you so much.💐
T cells mature in the Thymus and originate from the bone marrow, according to my test. This is probably not too important though, thank you for the review.
This explanation helped me so much. Its clear, step by step and emphasizes the areas where people might get confused. I used to mix up the replication wherein they will get different receptors (for diversity) with the replication wherein they will have the same receptor (for actually responding to the infection) all cleared up now. thanks
perfectly explained. thank you!
Thank you… Very simple way of explaining a complex concepts.
wow i literally did not understood what my lecturer said, but this changed all. thank you for this video, life saver!
These videos are really helping me through my degree, thank you Khan Academy 👍🏻👍🏻
Thanks so much I was feeling very depressed because I was not understanding my textbook but now there’s hope
I just want to thank you for using easy english in the explanation haha. I’m german but somehow there is no video in german that explains this topic as good as you guys. I’m so thankful that i could understand anything you said cuz you didn’t use many complicated expressions
wow this is the best video ever
You are literally a life saver, missed a bit of class and this has brought me right up to date!
Wonderfully done! I finally understand this a lot better now as it put all the little pieces together! =D Thanks.
SubhanAllah , thank you sir may Allah bless you :)
Thanks for making this video. It's awesome!
Thanks!!! This was so helpful
Best explanation ever !
perfect explanation
Wow, thank you so much, Mr.
thank you thank you thank you
best video, been trying to learn this for weeks
Wow, thanks, this is very well explained!
Thanks, I really needed this.
Thanks sir 😊
This helped me tremendously!! Thank you!
very informative
Amazing video! Made everything clear for me! Thank you!!! 😀👍
Thank.you.very.much.sir .
Thankyou so much 🙏
I found it useful and easy..thanks
best explanation
very clear.. Thanks ♡
Even after 8 years...thank you
Wow that cleared things up. Thank you! :)
thank you khan academy
thanks a lot
You are great
an excellent video to resum Immunology .
I needed this so much... really nice video 👍👍
thanks
thank u
This is amazing
And they starting replicating like crazy😄
Awesome😊😊👏👏👏👏
such a great job,thank you
Thanks alot,the info is really helpful
Amazing !!
Really great, thank you :)
Havent seen anything better yet simpler than this ❤
thank you
Thanx for making my life easier LOL
perfect...
Amazing! Thanks a lot!
Thank You!
You forgot T-dependent B-cells and T independent. T independent B cells are the only ones that can bind to the antigens on the bacterium's surface (epitopes like LPS and proteins. Other B-cells have to have the T-helper cells that differentiated out present antigens and stimulate them. Other than that, great video! You guys seriously help so many people!
You didn't talk about the co-stimulatory stimulus needed for T cell activation
6:33
You didn't actually talk about the clonal selection theory which talks about the diversity of antibodies and how their constant portion is made from a different gene than the variable segment.
thank you very much for all this valuable material. In this video you explain clonal selection and clonal expansion, right?
Hi there. My understanding is that with B-cells (and thus, humoral immunity), APC's do not play a role. Yet in your presentation, you reference APC's presenting bacteria to B-cells. Could you clarify?
No, in this video, his drawing shows that APC's are presenting the antigen to the T-cells. Also, this is probably way overdue, but B-cells can be APC's themselves.
What happens after a B-cell kills an antigen?
the way he is drawinggg
How about NK-CELLS?
why is that clonal selection, I'd rather call that selective cloning... Btw thank you Patrick!! I love Khan academy
Is it possible that we don't have a receptor for a particular pathogen?
Clonal expansion & selection are two separate processes!
Hey you first tell that the dendritic cells present the bacterial pieces to B and T cells and later you tell that the B cells don't actually need the antigen presenting cells they are able to react to the bacteria directly. Is there any mistake in the first statement? BTW the video is really nice.
same confusion here
Dendritics do present to Bcs, but Bcs don`t really need that. However, it helps!
Thought 7:28 and after was so funny lol esp at 2x speed
If i understand the video correctly, you are saying that antibody production is just a matter of luck? And if you were not lucky enough to have a B-cell that has the correct antibody for a specific antigen, then you just die? Would you please explain this? I am super confused because this video ( ruclips.net/video/Bl6vWLqL2D0/видео.html ) kind of suggests that antibody production is not a matter of luck, but rather a matter of the body creating a specific antibody for a specific antigen, rather than having an antigen just fitting an antibody by a chance of luck.
Don’t B cells get activated by T cells (cd4)
yo the thymus is found around the neck not the sternum
When army of same B cells or T cells are produced....then as they are same bcz they r produced by colonial section......but the antibodies produced by them or the activated T cells produced by them same?????.....and if they are same it means they require only one type of antigen so one gene codes for them???????.....r they produce different kind of antibodies????I am getting confuse about this point....plzzz tell me??????
I guess T-helper cells don’t exist anymore
You are a life saver check out mmbone.com
Im-- gay, or of with! Kaldean and Koine Egyptian languages. No BDZKL-- this is, two celled! DNA-- > DZNA-- This is, not internal medicine! You should learn, language, before speak? MEDZ TDZKL-- This is,
me, and my-- chest cells or, T-cells. Shoulders are, attached as the, T- branches of, arms -- lungs.
I am quite offended, was this all that the author had to know in his med school? If this video is intended for schoolkids, please dont pretend it is medicine. You simplified it so much that many things are just wrong, you also forgot to mention almost everything. Its like putting the entire bible in a sticky note: Some dude died for other peoples sins and got resurrected by his father who lives in fluffy clouds and murders the whole world from time to time.
I think Christians would not like my short version of the bible, and that is how I feel about this video.
thank you very much
thanks
Thankyou so much