Cell Defence: Lymphocytes and Phagocytes

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White blood cells are like the military of your body. The provide a defence system against invading pathogens that could harm your body.
Lymphocytes are responsible for the production of antibodies (and memory cells for immunity). Phagocytes are able to engulf cells and break them down.

[@joosmoo]

Thanks for this. I feel i'm now adequately educated to lecture every single person I know on COVID 19.

[@symbioticparasite6268]

Just ask the ones giving vaccine advice about lymphocytes and phagocytes, if they can't answer don't take them seriously..... Till now i haven't come across an advocate who does ....

[@islevenc]

well is good u dont know me cus I know what they say about covid is different to what it actually is :D

[@TheSimpless]

Crazy that a video on youtube explains this much better than a university level lecture

[@antondonovan2810]

Have you considered that you only find this much better than a university-level lecture because this is too basic? A lot of details in this video that aren't wrong, but overly generalized. If you're finding university-level lectures too complicated, chances are you have some major gaps in your knowledge, because university degrees like nursing degrees have assumed knowledge and generally don't deliver high school level content.
This video good for high school level biology, but when it comes to university-level knowledge, this is way too simple even for year 1 nursing student.

[@helloimnothing7954]

@@antondonovan2810 you've placed fear in me of what's to come in a few years when i actually had to learn that level of complicacy..

[@Foreverastar1324]

One year of my teacher babbling on didn’t help as much as this short video :) thank you so much for saving my grades, I watched your videos and managed to get an A* in my test

[@Science_Sauce]

Really glad the videos are useful, but remember it was your hard work that earned you that grade. Well done.

[@noamipwilder8288]

Thank you! So glad to have found your website! You have made it easier to understand for those of us who just don't get it sometimes. Thanks again!

[@blahlaland5739]

short sweet and to the point!!!! love the end test questions also!!! smart and helpful

[@boofang10]

BRILLIANTLY explained !! Definitely helps high school Biology students who prepare for this topic, for better understanding !!

[@sumoshark837]

This helped so much I was staring at my notes at 3:00 am before a science test not understanding a single word lol thanks

[@rein_reeee]

i adore edu videos like this. straight to the point, with visuals, AND an exam help section? awesome.

[@raisavanbaaren6798]

Thanks so much for this video! Super helpful!

[@alizaali9071]

Thank you. Very concise and simple to follow

[@AB-ku8du]

this is really good thanks man.

[@graceabigail331]

thank you this was extremely clear and helpful!

[@shehnazsalaad5157]

It really helped me plz make more videos and like coordinate and respond, reproduction and inheritance, ecosystem, increasing crop yields, selective breeding , genetic engineering,fish farming and also experiment coz am preparing for igsce thankz

[@mayasinha884]

Thnk u so so so much science sauce.....your 😀😁videos are incerdible every time and the way u explain vast concepts in short time....is mindblowing....this video is ultimate....thnk u sooooo much sir....lots of love

[@farahasyr2958]

The questions really help me

[@Chellameagain1]

This was very helpful!thank you

[@deepankaradhikari1631]

Awesome explanation

[@aceb281]

concise and helpful.

[@soundxcrash]

i like how u explain it straight into the detail and that u include actual slide photos which helps greatly but also keep it animated to find it more interesting

[@nosiphiwopiwo1882]

Thank you so much for helping

[@supersimplecooking2866]

Really useful, thank you!

[@herr-hanzo]

Thanks a lot, master, now I have a context for starting to study

[@suzannewu9380]

This was super helpful! Thank you

[@katesleath2207]

FANTASTIC video. Will be subscribing now

[@Science_Sauce]

Thank you!

[@dylanpatel7318]

Thanks that was really helpful

[@motseek4248]

Thank you so much it helped+good explanation

[@joanelynadonis4852]

Thank you for sharing❤️❤️❤️

[@tanialin9631]

excellent explanation

[@emilyevans154]

thank u so much my GCSE biology is in a few dyas this was a lifesaver!

[@savrajsandhu352]

Excellent video

[@AAa-zb1xi]

really great

[@user-xu1ei7st8m]

thanks

[@Lucy-il9mo]

This is so helpful! Better than many on here thank you so much!! :)

[@Science_Sauce]

You are most welcome!

[@Lucy-il9mo]

Science Sauce ☺️

[@niloumousa4147]

I have watched so many videos and by far this was the most helpful thank you

[@Science_Sauce]

Thanks for the feedback. Glad to hear it helped you out!

[@benmalone31]

I agree, it’s really helpful!

[@smilemakers5582]

thank u so much

[@Quranuser9450]

Thanks so much

[@shikamarunara2827]

It's really helpfull..thank you.😊

[@anishafernando1256]

Actually, Very Nice. You are teaching clearly and very nice ❤

[@meggiemarie3162]

Thank you so much, wanted to clear any hesitations up before my exam today and this really helped :)

[@Science_Sauce]

+Meggie Marie glad it was useful. I'm assuming you say IGCSE paper 3 or 4 today? Hope it went well

[@OrganicMilkGang]

Did he pass, cliffhanger?

[@ehabibrahim5712]

I have my GCE p2 of bio in 2 days. This was one of the last tiny concepts I had to clear out and now I'm all set. THANK YOU

[@unicornpower6952]

AWESOME!

[@sanahisham8870]

Omg thank you very much you really helped me to understand them😊😊

[@connorhumphreys9539]

Great help subbed

[@tanaymehta898]

Thank you really helpfull

[@anniecookiekawaii4379]

so helpful cant thankyou enough

[@studychannel1169]

Helpful

[@Cristobal_productions.]

wow!! thank you so much!!!!!!!!!!!!!!

[@lely2629]

Thank you !!!!!!!

[@sumantripathi6097]

Thanks sir

[@anugarg1528]

Amazing video🎉

[@vishaljagtap8803]

easy to understand

[@ARK4N]

this was great

[@Mayakihara]

thank you

[@Science_Sauce]

+Maya Kihara you're welcome

[@katecamelot5274]

this is very good video

[@Penguin-ro9pd]

You are actually a legend

[@sanjanarahman6311]

Thank you🙀

[@maham5289]

amazing mannn

[@htp5610]

Really most understandable video thank you so much ♥️🇸🇦شكراً

[@Science_Sauce]

You're very welcome!

[@halafr5861]

Thanks 🙏

[@Science_Sauce]

You’re welcome.

[@afshandavid5083]

Was really really helpful 😁

[@asherporter8653]

Cheers mate, what a legend

[@user-li6pn1jb7f]

great vidd!

[@kennynirmanth7706]

Thanks u sir

[@ee-zm3hz]

this was so helpful, thank you so much

[@Manishcha5083]

My teacher should learn from you👌
Love from india🇮🇳

[@agentbeam4360]

Tect

[@danusia5818]

i am in love with your voice i will do so well in my gcses to make u proud

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jesus

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His accent makes me wanna hear him more..❤️🔥

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Fantasticulate video , yes i just made that word up to explain this truly amazing video😂

[@someone8987]

Really nice....I shud say it was incredible...Carry on nd keep it up...Love from Kashmir ....

[@octavianiotu7414]

oh yes

[@md.rezaulkarim2468]

Tnx brother .. My confusion is now clear :)

[@bato2763]

I thought when a phagocyte cell destroys a pathogen the products are suppose to dissolve in its cytoplasm.. right? Or is it just not accurate?

[@Science_Sauce]

The products are discharged from the cell.

[@kierancjh]

Thanks so much it helped me a lot

[@laibaah3634]

Thank you so much this really helped.

[@briannapowell3232]

wait I thought phagocytes die after going through the process phagocytosis, that's y they only last for a few days

[@YoCRPT]

this is very poggers

[@Gianluara]

what microphone do you use?

[@Science_Sauce]

I can’t remember what I used on that video but I tend to stick with a large diaphragm condenser microphone

[@heshr8571]

THANK YOUUUUUUUUUUUUUU

[@Science_Sauce]

You’re welcommmmmmmmme

[@helloimnothing7954]

what happens to what the phagocyte excreted after engulfing the pathogen?
is it somewhat beneficial to our body?
or just a mere waste?

[@Science_Sauce]

Phagocytes can present the pathogen’s antigens on its own surface after phagocytosis. This helps other cells of the immune system to also fight the pathogen.

[@helloimnothing7954]

@@Science_Sauce ah, the cytotoxin t cells?
so the product never really was excreted out of it but just used as a signal to alert white blood cells.
thanks for replying.

[@Science_Sauce]

A large portion of the pathogen byproducts is released from the phagocyte. Only the antigens are presented.

[@sabitasing1698]

I can't understand what is the real meaning of antigen

[@bato2763]

Anyone knows a good channel for igcse chemistry?

[@deniserobalo168]

freesciencelessons

[@kamindhilokugamage9575]

or crash course .

[@DrDanStratton]

Some massive over simplifications, those 'antibodies' are B cell receptors too. The soluble form is an antibody but this is incorrect.

[@kennynirmanth7706]

Wowwwwwwwwwwwwwwww super

[@No.one19330]

He did phagocytosis dirty

[@erumhameed6548]

👍🏻

[@allrounder6160]

I am one of those who loves sara chaudhary very much and she was my first crush and i still love her

[@chrisjbower]

wagwan mandem

[@WispyJupiter]

WillNE!?!?

[@amieweymouth992]

Sure we are an accident of the Big Bang ‼️ 😅 😂
The body is amazing. It’s a warrior. Perfectly created, in his image. 🙌

[@wriggly11]

lol i was literally gonna write 'eat'

[@Science_Sauce]

Nooooooooooooooo....!!

[@elmundir]

It s hard to beleive in darwin after this

[@Science_Sauce]

How so?

[@elmundir]

Science Sauce by accident :)

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Господи спаси сохрани меня мою семью мою любовь спасибо большое аминь ❤🎉😊

[@FayazAhmadFayazAhmad-tc8tf]

❤❤❤❤❤❤❤❤

[@bm.8492]

I KNEW IT, YOU ARE AN INDIAN WITH A SCOTTISH ACCENT

[@Science_Sauce]

I’m a Geordie with a Geordie accent

[@o.m9514]

eats

[@agentbeam4360]

Thank you babe for that I got 100 let’s dog dog

[@bizzyguyunsurname7514]

3:20 ahahahahahahahahahahahahah

[@chickenlover6921]

POV ur here because of online school

[@rohanlobo3178]

Whos here because there teacher told them to watch this.

[@FierceDriver157]

me

[@rohanlobo3178]

@Baxter DONOHOE Fuck (intercourse) science is biology

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Baxter DONOHOE yes u do 😉

[@rohanlobo3178]

Baxter DONOHOE and ill still clap dem cheeks

[@bermer9369]

DOUUUU DE NAZI ESTE VIDEOO BRO GRACIAS AMIGO SI APRUEBO TE COMPRO UNA CASOVICH EN MARDEEEEELLL!!!! pd: si lees esto sos puto pasto

[@mazaniqueatkinson3949]

All way boring sorry I mean my teach