Immune System, Part 1: Crash Course Anatomy & Physiology #45
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- Опубліковано 11 чер 2024
- Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy -- your immune system. The immune system’s responses begin with physical barriers like skin and mucous membranes, and when they’re not enough, there are phagocytes -- the neutrophils and macrophages. It also features the awesomely named natural killer cells and the inflammatory response, and we'll explain how all of these elements work together to save the day if you happen to slip on a banana peel.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/2SrDulJ
Chapters:
Introduction: Immune System 00:00
Skin as a Physical Barrier 1:47
Mucous Membranes 2:25
Phagocytes: Neutrophils and Macrophages 3:17
Natural Killer Cells 4:29
Inflammatory Response 5:16
Review 8:03
***
"Reformat" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
creativecommons.org/licenses/b...
***
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Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/2SrDulJ
The animations were absolute quality.
+Scotticus25 The faces were so cute, haha.
+Scotticus25 best animation 11/10
+Scotticus25 This was probably my favorite episode so far in terms of animations. There's some great stuff coming up too! +Thought Cafe is amazing.
-Nicole
+Scotticus25 Literally scrolled down to say 'the animations are awesome'. Saw this. +1 :D
+CrashCourse TOTALLY
You guys are amazing. Managing to pull off a cliffhanger on an educational video is quite the deed.
Right it's kinda scary
+Tyrannosaurus Rex Didn't even think of it that way. It is impressive.
My Ancient Greek teacher did the same when talking about the Minoiens. He mentioned "in passing" that they could have been Atlantis and then said that the lesson was done!
+Tyrannosaurus Rex - Very impressive, indeed!
If phagocytes can swallow invaders, like bacteria and viruses, then how can anyone be sure that vaccines that are made of inactive viruses really work? Inactive viruses do not reproduce, and do not cause infection, vaccines with weaken viruses may replicate, but also do not cause infection. Does the immune system really need to produce antibodies, for viruses that do not cause infection?
This guy: "Our immune system is very sophisticated."
Immune system: "My solution to this problem is to BURN EVERYTHING TO THE GROUND!"
As both a medical student and artist, I find this blend of animation and science all sorts of awesome. 👍
This is, by far, the most adorable portrayal of the immune system I have ever seen. Props to Crash Course.
It certainly was at that time. Japan made a longer portrayal. It's called Cells at Work (all but three episodes the immune system is featured prominently)
this is the best animation yet, oh my god.
+herpsenderpsen Thank you!
+Thought Café Your every animation is amazing :) Do you have a store we could buy products from?
+
*you just explained 2 chapters of college micro in like 5 minutes*
yes. haha.
but you learnt f'all
Its 9
3:13 BAD BAD BAD.BAD!!! I AM NOT REALLY GONNA BEACOME A COOK
Ave Hank!
the fact that I watched this 10 minute video and understood everything astonishes me. It also amazes me how college professors literally elongate so much of their lectures, sometimes talking for 3 hours straight to tell us the same information in this video.
I need plushies of those little animated cells omg
Same! They're the cutest microscopic structures I've ever seen
+Jess Liu I want the plague doctor NK cell
they kinda exist already. check giant microbes. There are several blood cells too.
+Jess Liu Indeed :)
+Jess Liu I remember that there is a company that makes custom plushie toys. I forget the name but you can look them up and send them this video saying you want a plushie of this cell at this time in the video.
Literally the best animations yet. Absolutely flawless.
empCarnivore I agree
*Kurzgesagt* is better...
@@WadcaWymiaru nope
Is ur profile pic mugi from K-On?
Smiley face phagocytes
The Macrophages are so darn cute!!
And the neutrophils! ☺️
Best waifu
My first thought ☺️
Careful, they're only 17. _(Oi, oi!)_
Macrophage: WE ARE INFECTED WIH THE EBOLA VIRUS MA' AM
CD4+ CELL: THEN GET TO WORK YOU FREAKING @#$%@$$#$
I am a visual learner and let me just say this.......this FINALLY makes sense!! I love those animations!! Besides it being informative, it's really entertaining. Loved it!!
you there stop looking at the comments section and study
Got me
@@tbsjgmyt N ME!))))
😂😂 ok I will go now
lol got me too xD
Likes comment to proceed scrolling
For some reason, I lost it when the Hypothalamus used Fire Blast. XD
I love this unit.
Legend27?
lol same
It's not very effective...
@@midnight_gmr8562 haha
hes gesturing so hard the fluid on the table in the flask is jiggling wildly
I don't know why people hit the dislike button... your videos are amazing keep doing what you are doing
I think because he is really fast in talking
Well you can slow down the video...
The dislikes are viruses that escaped the immune system.
Jose Arellano , yup at 75% he sounds normal
Simplified bait video, useless graphics (but good, gotta give em that!), narration is "overacted" to the fullest.
I work in medicine and i approve of this video, everything is spot on, amazing presentation and an absolutely hilarious barrage of jokes and puns. Well done Hank, well done. I will be referring to this video anytime a friend of mine asks about immune systems in the future.
“The pathogens are flooding in like orcs from helms deep” that had me dying 😂
Are you better
"You can also call them NK cells, but, like, why would you do that?"
> **calls them NK cells**
our own immune systems are more intelligent and work harder than most humans do...
lol very true
but actually your immune cells are human too.... pero en realidad tus células inmunes son humanas también... xd
Your scope of domain gets larger.
but if it's a part of us along with many other organ systems then doesn't that mean that humans actually work far harder than the immune system itself?
I wish my I.S. would go to work for my brain cells. They're doing the jobs that Americans just don't want to do.
NEXT TIME ON IMMUNEBALL-Z
+ling Su LOL!
+ling Su This has to become a thing!
What will dendritic cells do with an overwhelming attack on the body? TUNE IN Next time, for "THE ADAPTATION".
PS. the mitochondria is the powerhouse of the cell
+ling Su lmaoo gold
+Paul Ferrell MBC播.M（沒開口）
沒
:😶😀😑😀😐😉😀
😃
If everything fails... BURN EVERYTHING :D
+fatherdoctor "Burn them all" - Aerys II Targaryen
That's called cytokinesis xD
+fatherdoctor IMMA FIRN' MA LAZER!!! BBWWAAAAAAA!!!!!!
+Conrad JD 777 i love your minecraft skin xD
gamer mega elite Thanks m8! ;)
Whos here after the coronavirus outbreak
Better be ready
That and after watching Cell at Work.
Im here because of cells at work also.
Children:*sighs of relief*
me
neutrophils: we can destroy bacteria !
macrophages and monocytes: hold my proteins
yeet
I just wanna give a HUGE thank you to this entire series of videos (but especially the immune system ones!!) I took the MCAT last May after many months of studying and watching this series over and over and over (by the end I was literally playing them while I slept). I got an amazing score and I've now been accepted to a couple of great schools, and I literally could not have done it without these fantastic videos that present the topics in such an engaging and informative way! Seriously, THANK YOU!
"and it can do it over and over again, like a boss" OMG
I didn't know bananas came from factories so glad I learnt something from this vid
AAAAHHHGG CLIFFHANGERS!
+Caer Ibormeith Game of Thrones style D:!
+Caer Ibormeith You have to admit, though, that this particular cliffhanger was quite masterfully presented.
+Caer Ibormeith
spoiler alert: watch Crash Course Biology #32: Immune System
Itaju pp
Yep IKR
I love the Pokemon reference 😁
When?
Musent! Hey other me!
Btw it's the fire blast
But Fire Blast used the sound effect for hyper beam
Totally! I keep rewatching 😂
The cells are so cute
"You can also call them NK, but I mean, why would you?" Hahaha. Hank, cracks me up!
"Banana factories are very dirty places!"
That's the quote that got me from this video :D
@@SkopeeProductions Wounderful quote! Wasn't it?
those macrophages are absolutely adorable, i would buy a plushie.
"Natural Killer Cells" would make a great Quentin Tarantino film.
Natural Killer cells are basically like the inquisition. Because you didn't expect that comparison.
Well they made them ss like soldiers in an anime.
That's something
hahahaha..
I'm assuming you already know that he wrote the screenplay to the movie *Natural Born Killers*. Such a great movie.
no but they made a great anime
"Just because it's simple doesn't mean it can't be elegant."
A perfect example of that would be Kirby.
Never saw a more interesting biology video.
Don't get me STARTED on the dangers of bagel cutting!
I totally lost it, during the Monocyte evolving + 6bit music
😂😂
these example are insane:
"cut myself when opening a bagel"
"slipped in a banana factory and grazed my knee"
so basically the immune system is the custom and border protection, your Innate is the office of border patrol, adaptive defense system is the Office of Field Operations
What I learned: PHAGOCYTES ARE BADASS!
BURN EVERYTHING. Awesome
Seriously the immune system is so freaking cool
"The pathogens are just flooding in like orcs through Helm's Deep". Best lotr reference ever!!!! hahah he's so awesome :)
These videos are amazing....... you have to make more of them
Sounds like my ex, immediately engage with anything/anyone suspicious.
LOL
Same here
+Caleb Limb Is your ex a serial killer? Because in this context "engage" pretty much means "eliminate".
+angeldude101 funny story
lol
The professionalism of this channel is incredible. So informative and yet even I can almost understand what's going on.
I actually found the CrashCourse Biology version of the Immune System more helpful although the animations are better here yet it was more easy to comprehense in that video. Is it just me or anyone else too?
This reminds me how amazing the human body is that it can all of this without me thinking about it
Amazing episode. Very funny and very informative.
Gotta love learning about the immune system while in self isolation from a spreading virus
OUR BODY WILL BUILD A WALL (Skin), AND BACTERIA WILL PAY FOR IT 2:20
Mexicans = germs?
I was thought it is only about germans XD
I can't explain just how much your videos are helping me! I'm also 62 but just getting into this education lark (I hated school when I was a kid, now I'm a big kid I don't think I'll ever really grow up) If only this sort of thing was available then! I am training yes at a late stage to be a reflexologist and need to understand anatomy and physiology you have made this all possible as I was struggling just reading books. Thank you, thank you, thank you.
"Cells at work" reallife edition XD
DO MICROBIOLOGY!
PLEASEEEEEE
THIS IS MICROBIOLOGY!!!!!! YOU JUST DONT NOTICE YOU ARE LEARNING YET
And kinesiology!
This is letterally the same things as a chapter in my microbiology textbook
Yup, I'm watching the immune system series for my Microbiology final!
If there was a macrophage plushie I would so buy it! They are so cute!
Cells at Work!
Man!!! I can't say enough how awesome!! you are... I got an A on my bio.... I love you!!! ;-))))thank you very much!!
Soooo... My biology final was this morning. And my professor specializes in the immune system. Thanks for nothing, Crash Course.
But seriously, I actually appreciated these videos a lot while studying for this class. They made it a lot more interesting and manageable.
+Kelsey Gertje May the curve be in your favor
Funny you say that... my professor also doesn't curve.....
:
Shut up, average person.
+Syverson1979 okay then....
They've really outdone themselves this time, haven't they? Thoroughly enjoyed it. Good work CrashCourse team!!!
I can't tell you how helpful this episode has been to me. I have an immune system quiz a couple days from now and being the visual learner that I am, decided to watch this episode in order to better understand the process. My Biology AP grade and I thank you for your thorough explanations and great analogies and examples.
holy crap the epicness of this episode is over 9000!
Coolest Nerd Eva! Who all agree?!?!?!?!
I DO
@Aarushi Grover Are you a forensic student ?
Hank explains things so well.
What a convenient time for my a & p class to go over the immune system
4:30 macrophages "LIKE A BOSS"
1 2 3 4, we are Cells at Work!
?
Ahhh, I see, a man of cultural
absolutely love these
Why are all these white blood cells the most adorable things I have ever seen?? Oh my gosh, they are so cute!
Now I can't stop imagining white blood cells sounding like Link from OoT. Thanks, ThoughtBubble.
+Jake Mauger Hyah!!!!!!!!!!!!!!
+Jake Mauger ;-)
+Jake Mauger HYAHHH!!
+Thought Café Sweet Job xD
This was so amazing and interesting and I especially LOVED the "Final Fantasy" style "cell fight" animations!!
+Megan Rivera :-)
Thought Café
I subscribed to your channel!
+Megan Rivera It was Pokemon. Fire Blast is ripped directly from Pokemon.
JDraks
Final Fantasy came out before pokemon did, Final Fantasy was released in 1987 and Pokemon came out in 1996. And I understood the Fire Blast Pokemon reference but the fight was in the style of Final Fantasy. I've been a video game geek for 31 years, you don't have to question my knowledge.
Megan Rivera The health bars and text box at the bottom are pretty much perfect matches for Pokemon. Really, the only difference between this and Pokemon is that Pokemon text boxes would be on bottom right for left and top left for right.
The bagel cutting dangers are real. 🍩🔪
that's a donut
Did you mean ? 🥯
Did you mean ? 🥯
I only just figured out you’re not John green
As a struggling A-Level Biology student, thank you Hank Green and the Crash Course team, you rock!
Best episode ever? Can't wait for part 2.
how perfect and amazing the human body is
wow that was the best description of the immune system i've came across yet. So cool! thank you so much
Just happens I'm doing this in biology, my absolute favourite topic when it come to biology, so grateful to be able to watch these videos to enforce everything i learned in class(while teaching me more) thanks again!
Amazing job again guys! Just wanted to add that fever also makes it harder for the invading bacteria to replicate as our usual body temperature is their optimum and a lot of bacteria are rather sensitive to temperature changes (at least that's what I learned in my immunology lectures)
So simple yet so elaborate 👍🏻
NO MATTER HOW MUCH I SCRUB
I WILL NEVER BE CLEAN
OH GOD
I'd prefer the term 'paranoid' but whatever you say.
You were a decearing egg
"It's the Justin Bieber show! YEAAHH!!"
I love that video!
We can never be truly clean, wouldn't be surprised if most of what we sit on has ecoli. As a germaphobe and OCD this makes me die in the inside
Bi pride I see
Oh, it's good to know that my body has several billion Swords of Evil's Bane floating around to protect me.
aren't those the cutest cell you ever seen?
love your videos so much! I'm in grad school to be a family nurse practitioner and these videos are great ways to refresh information and make it easier and fun for patients to learn :) thank you!!!
can you please do a detailed video on IBS i.e Irritable Bowel Syndrome . How it effects the body and any prevention ways.
Abdullah Waseem omg yes
"your outer fortress has been breached, and the pathogens are just flooding in like orcs through helm's deep" I love you 😂❤
They protecc
They atacc
But most importantly
We want our body bacc
Um, um, um, uh, uh, hehe
I’m laughing because u thought u were funny
Awesome animation and video, I wish my teachers used Pokémon animations to teach me about the human body or anything. Your probably ones the best tutor of the 21st century.
I have test soon for immune system and i was so bored...
However after watching this, it made it fun to learn!
The immune system videos are among the best in the whole A & P series. Phagocytes and natural killer cells are described and illustrated in such a clear way. Thank you and God bless.
I am watching this for school and it's too funny:) LOL.
This made immune system way more fun!
Agreed
Whoever did the animations needs a pay raise
This has to be my absolute FAVORITE crash course episode! This was so enjoyable to watch (in addition to being very educational! (:
Thank you so much for these videos! Very informative, love the animation. Makes it so much clearer to understand. I love that they used Pokemon as an example. It makes a better understanding how the body works.
Awesome. Thank you for this. loved the images and the explanation, I feel more in touch with my immune system. Great work.
i love how you guys make the information engaging and explain things so well. it makes it easy to understand and interesting to listen to.
Anytime I hear about all the awesome ways my body is protecting myself from the outside world-which I hear mostly from you and Kurtzgesat-I get all giggity inside. Like, my body is freaking awesome! Good job bod!
Came here because of Hataraku Saibou (Cells at work)
The Capt. America shield got my attention. What have I been doing all this semester.....this videos are great!
I have used your presentation so often as it explains the immune response magically THANK YOU
this is the cutest video on immune system EVER!