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
Sometimes when I feel down, I come back to this video and watch Hank say "THE RED BLOOD CELL GRAVEYARD" about ten times, then I remember that life is good
chazz30000 Yeah, nice try. I'm not ashamed that I find a character with their hand cut off and spurting blood a little disturbing. Especially for a family friendly educational series. You did get the tumblr part right, though. I love that website.
liampgc Let's be honest, for this show it's pretty graphic, you know, with Squidward screaming and all. For rest of the internet it's nothing but I agree it felt a little out of place here. Inbefore you're offended. I'm not offended cause you know, the internet and stuff.
I have been *trying* to work on a research paper in regard to blood during decomposition stages. I suggest a CrashCourse discussing how blood 'dies' when a person dies. There is very little information on this subject
wow this is great! now that I actually follow and always watch the newest episodes I was wondering about some stuff with red blood cells and before I even get to look it up it gets explained in the next video! If only schools were that effective and entertaining... Great job everybody!
+isectoid youre joking right the video is about blood what the heck did you expect. And a child wont watch this because it is much to complex. you need to be at least 13+ to understand this.
THanks for being my favorite thing on youtube. I recommend you every chance I get. Chemistry, Biology, World History, Economics, American History, Astronomy, my personal favorite Big History, and the rest... I love them all. THanks for them all :)
Wow, I thought that this was a really "standout" video in this series. Maybe it was just my personal interest in the content or some extra work on the part of your team. Whatever it was, thank you so much for a thoroughly enjoyable video!
the early erythroblast is so cute that it made me giggle and rewatch the development of an erythrocyte just to see all the cuteness. props to the animation team :) 5:00
Hey there! Your videos are truly amazing, helping and are really comprehensive...Please make a video on BLOOD TYPES AND RH GROUPING..that would be a great help!!
that was a good journey for me to understand how the cardiovasc works. I am currently prepping to write about Viagra, so now I understand the big picture behind the science working in this specific medicine. Thanks, CC.
Hematopoiesis is not the process of forming RBCs, it's the process of blood formation in general. Erythropoiesis is the process on RBC formation specifically.
Hey Crash Course, I research hemoglobin based oxygen carriers. I enjoyed the show, however modern research on the subject suggests that hemoglobin cannot be put directly in the blood because it would extravasate through the capillary wall and 1)scavenge NO and 2) cause oxidative stress. loved the show!
fun fact, "The intense color of the protein stems from the extended conjugation of the protoporphyrin ring, not the iron, as is commonly misconceived." - B.Reeder 2010, The Redox Activity of Hemoglobins: From Physiologic Functions to Pathologic Mechanisms
but how does the spleen capture the old cells.. does it work of the hardening? something like a permeable membrane that only flexible things can pass through? or is it more complex than that?
Great video, you answered my emidiate question why not use hemoglobin directly ;) But still, why are the blood cells not smaller? Shouldn't it be pretty easy and much more efficient?
oggi mog he did mention in the video that free floating hemoglobin can thicken blood and make it harder for your heart to pump blood around the body which can lead to several complications so athletes wouldn't risk it as it can potentially kill them as their very own blood turn into the consistency of ketchup (not sure if it's true but ketchup was the first thing that came to mind)
oggi mog They are already much smaller than most other human cells (the only smaller ones are sperm cells). If they were even smaller, we would need even more of them, which considering the way they are produced could actually be harder and more expensive.
I have a question. Does the iron in the hemeglobin transport only one O atom (ion) or one O2 molecule? Becuase the first would make a lot of sense, because iron can act as a 2+ ion and oxygen as a 2- ion
could you please make some videos explaining the wide world of autoimmune diseases (rheumatoid arthritis, MS, crohns, neuromyelitis optica, etc..) there is a whole world of people experiencing these things that would like to have some it illuminated in the way you do.
Was an episode done on the immune system? I have leukemia, and while I know quite a bit about human white blood cell production and such, and I would love to see Crash Course give me a lesson that's full of cute little cells and fun graphics...because I'm a dork.
+Christopher Sadlowski They did one for Biology, but I'm sure they will do another one for Anatomy and Physiology since this set of videos is not finished yet.
+Christopher Sadlowski hey just letting you know that they made the immune ones already. The 2nd part came out yesterday, but part 3 is coming up next week i'm actually excited for it haha
About the bilirubin - why do we get rid of the haem group? It looks pretty difficult to make, so wouldn't it be more efficient to reuse the whole molecule instead of just the iron atom?
If I remember correctly, most of the transport of carbon dioxide in the blood is dissolved in the plasma (which then does the carbonic acid/bicarbonate buffer thing), not in the erythrocytes. Unless that's what you mean that you'll discuss it in the respiratory system section . . .
I really need some info on the relevance of specific vitamin intake and the production of white blood cells or how they contribute to bone marrow growth. Please help. My moms in the hospital with a low white blood cell count and my doctor thinks smoothies with spinach, nuts and seeds is pointless. Thanks so much.
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 art in Crash Course is so cute. I mean, never before have I ever wanted to hug a cell.
its clear that you are in med school, since you need more cuteness in your life.
i feel you.
Me 2 hahahaha
I've always wanted to hug a cell, but when I try I end up losing it
😅😅😅😅 ikr?!
Doot Noot n
Although I was watching this in preparation for a test.... it just blew my mind how complex the life of a single component of your body is. Crazy.
angelswave88 subhanallah
is almost as if every single cell of your body is aware
I love the way he just chucks in a funny quip or metaphor every here and there, hilarious, makes the lesson all the more interesting and fun to learn
All these videos are great, but this one was dope.
so dope
dope comment
TheFireflyGrave punn intended?
I'd say it was bloody good
Poor Squidward at 3:20 was good. +1 for your graphics team for keeping it fun by being graphic.
yasss!
+Douglas Gerlach no no no, we have gay people needing therapy because of that little soundless animation.....
Douglas Gerlach ddddddfecce
You're a real musculus sphincter ani externus, eh Dvd Dvd?
A glorified, protein-filled, phosopholipid bilayer sac, y'know?
WHY IS THIS SO FREAKIN HELPFUL
Like I’m learning more in 10 minutes than I could learn in a week
1:54 Sounds like a Shakespearean insult, but with biology.
"You glorified, protein-filled, phospholipid bilayer sac!"
This made me laugh more than it should have
😂😂😂😂😂😂😂
😂
I got so emotionally invested in the red blood cell's life and now I'm crying :(
These videos are the only reason I pass any of my Bio Tests.
yes!!! me too!
Facts
Sometimes when I feel down, I come back to this video and watch Hank say
"THE RED BLOOD CELL GRAVEYARD"
about ten times, then I remember that life is good
Watching this makes me want a blood cell plushie...
Dulliest get someone to have their period on a plushie, there ya go..
THIS! @Andrianna Lu
BLESS YOU!! I can’t imagine my life without crashcourse. Don’t ever stop please
this erytrocytes are incredibly cute!!!!
when He died, I was sad
3:19 that animated Squidward looks super cool, and you might wanna take him to the hospital.
*Swishes about a glass of water* "This is your blood."
"And this is your blood..." *dumps in a bunch of cornstarch* "ON DRUGS."
Hey Brother, been doing drugs again
"Tiny, bloody breath mint"
That made me actually laugh out loud :)
😂😂😂😂😂
Ok, had to pause to type this. That image of Squidward at 3:20? WOW. That's pretty graphic. Wasn't expecting that.
chazz30000 You are mad. Is not big surprise.
Alan Gebhardt I paused there too, they could have had him donating blood or something
chazz30000
Yeah, nice try. I'm not ashamed that I find a character with their hand cut off and spurting blood a little disturbing. Especially for a family friendly educational series.
You did get the tumblr part right, though. I love that website.
Alan Gebhardt I'm offended that you found this graphic.
liampgc
Let's be honest, for this show it's pretty graphic, you know, with Squidward screaming and all.
For rest of the internet it's nothing but I agree it felt a little out of place here.
Inbefore you're offended. I'm not offended cause you know, the internet and stuff.
I have been *trying* to work on a research paper in regard to blood during decomposition stages. I suggest a CrashCourse discussing how blood 'dies' when a person dies. There is very little information on this subject
I love the crash course episodes. It helps me learn. If it is possible, please make more
I'm amazed too, especially with his speech rate!
I probably would've failed my assignment without you guys... keep up the good work❤️
wow this is great! now that I actually follow and always watch the newest episodes I was wondering about some stuff with red blood cells and before I even get to look it up it gets explained in the next video! If only schools were that effective and entertaining...
Great job everybody!
I'm flagging this video for violence... too much blood.
+isectoid youre joking right the video is about blood what the heck did you expect. And a child wont watch this because it is much to complex. you need to be at least 13+ to understand this.
Ben Scholer Yes, I'm joking. I'm not stupid.
+Ben Scholer I think isectoid is joking
in that case its all fine
LOL
i am a child watching this (using my mother's account)
THanks for being my favorite thing on youtube. I recommend you every chance I get. Chemistry, Biology, World History, Economics, American History, Astronomy, my personal favorite Big History, and the rest... I love them all. THanks for them all :)
I loled at the *Red Blood Cell Graveyard* scene, poor old cell ...lol
Wow, I thought that this was a really "standout" video in this series. Maybe it was just my personal interest in the content or some extra work on the part of your team. Whatever it was, thank you so much for a thoroughly enjoyable video!
the early erythroblast is so cute that it made me giggle and rewatch the development of an erythrocyte just to see all the cuteness. props to the animation team :) 5:00
with out this channel i would have probably failed my finals for collage
nico arias yup! me too
nico arias college or collage?
nico arias. College*. You passed..?
"with out"?
You made me laugh when said, "The hemoglobine run away naked in your blood" I watched like 4 times for this sentence ... So funny ...
thanks for teaching me random stuff bro! was bored and came here just in time.
your videos always help me out in college in nursing thanks so much and keep going!
Hey there! Your videos are truly amazing, helping and are really comprehensive...Please make a video on BLOOD TYPES AND RH GROUPING..that would be a great help!!
5:11 "causes the cell walls to collapse" shouldn't it be cell membrane?
+Hui Allen cuz it's not a plant cell lel xD
Human cells have cells walls confirmed
+AJ Hoffman Ey b0ss
+isectoid can I haves a hamberger?!
Hui Allen yeah
I love these crash courses! Thanks for making them!
thank you all those on patreon i really appreciate you guys. These videos are awesome
I love how no matter or energy is wasted in most things in nature :).
GREAT. I CAN ACTUALLY LEARN HERE. Why did they not teach science and biology so effectively, back in the day?
This is one of your funniest videos so far! Very enjoyable and educational. Thanks!
Thank you for having this channel. Needed this to go over some things before Quiz. 👍🏽👍🏽
I love these videos! Especially since history and science are my favourite subjects xD
that was a good journey for me to understand how the cardiovasc works. I am currently prepping to write about Viagra, so now I understand the big picture behind the science working in this specific medicine. Thanks, CC.
wow this lectures are fantastic. It's the first time I have ever left a comment on You tube.
7:06 AAAHHH WHY ITS SO CUTE Q-Q I DON'T WANT TO BELIEVE 2 MILLION OF THOSE ADORABLE THINGS DIE EVERY SECOND
Wow, awesome video. So many terms, can't remember them all, but we get the general picture very well.
I have binge watched so many crash course videos and I feel quite confident when I say; your hair is different in this one
I love learning how our body functions!! I felt sorry for the red blood cell that got eaten.
Hank is so saltyyy in this. Love it.
love this videos! Quality, content and humour are amazing!
1:03 I like the fact that we have a little bit of Weird Al in all of us . . . XD
you know I always knew I needed Red Blood Cell in my life ^_^
she's best waifu!
*reference to the anime Cells at Work*
okay with the erythroblast chucks out the nucleus that is just the cutest little sound ever
loved Rasputin on the shoulder when speaking of hemophilia 😆
This reminds me of when Hank explained erythropoiesis while giving blood during an old Vlogbrothers video :)
I really want a red blood cell plushie! They are adorable!
Just re examine that you just said you want a red blood cell plushie . Would 5 year old you be happy?
My five year old self would not have cared about a red blood cell plush toy. My current self would enjoy it though :)
Every video in crash course is so informative and helpful
7:17
That just cracked me up.
I love the little Strong Mad figurine on Hank's desk, quite appropriate ;-)
I owe so much to this series it's insane
Hematopoiesis is not the process of forming RBCs, it's the process of blood formation in general. Erythropoiesis is the process on RBC formation specifically.
5:11
Cell walls? When did I turn into a plant?
Hey Crash Course,
I research hemoglobin based oxygen carriers. I enjoyed the show, however modern research on the subject suggests that hemoglobin cannot be put directly in the blood because it would extravasate through the capillary wall and 1)scavenge NO and 2) cause oxidative stress. loved the show!
fun fact, "The intense color of the protein stems from the extended conjugation of the protoporphyrin ring, not the iron, as is commonly misconceived." - B.Reeder 2010, The Redox Activity of Hemoglobins: From Physiologic Functions to Pathologic Mechanisms
Thanks you! This helps me when I am in class and It makes learning so much fun.
You speak extremely FAST but THAT'S OKAY . You're awesome.
great video, but let's not pretend that armstrong's competitive field didn't consist of hundreds of people doing the exact same thing as him.
great video you make learning fun and nourishing at the same time which is very special . keep on doing that.
but how does the spleen capture the old cells.. does it work of the hardening? something like a permeable membrane that only flexible things can pass through? or is it more complex than that?
Great video, you answered my emidiate question why not use hemoglobin directly ;)
But still, why are the blood cells not smaller? Shouldn't it be pretty easy and much more efficient?
oggi mog he did mention in the video that free floating hemoglobin can thicken blood and make it harder for your heart to pump blood around the body which can lead to several complications so athletes wouldn't risk it as it can potentially kill them as their very own blood turn into the consistency of ketchup (not sure if it's true but ketchup was the first thing that came to mind)
Deathcap Rabadon Oh, yes I saw that. Maybe I wrote my question a bit confusing.
My question was why the blood-cells are not smaller.
oggi mog They are already much smaller than most other human cells (the only smaller ones are sperm cells). If they were even smaller, we would need even more of them, which considering the way they are produced could actually be harder and more expensive.
oggi mog well that's like asking "why do we get older?" The answer, we will never know, it's just how things are.
I have a question. Does the iron in the hemeglobin transport only one O atom (ion) or one O2 molecule? Becuase the first would make a lot of sense, because iron can act as a 2+ ion and oxygen as a 2- ion
I love this !! I passed A&P1 with a B ! Thank you ❤️
OMG this video is so informative and helpful!!!
B34(2)
1:37
4:35
i love your videos! thanks they help me understand concepts much better! cheers
could you please make some videos explaining the wide world of autoimmune diseases (rheumatoid arthritis, MS, crohns, neuromyelitis optica, etc..) there is a whole world of people experiencing these things that would like to have some it illuminated in the way you do.
Was an episode done on the immune system? I have leukemia, and while I know quite a bit about human white blood cell production and such, and I would love to see Crash Course give me a lesson that's full of cute little cells and fun graphics...because I'm a dork.
+Christopher Sadlowski. Crash course did do a video on the immune system, but that was in 2012
Asta Helene Seest Jensen ah thanks for the tip! To the archives I will go to dig up that video :D
+Christopher Sadlowski They did one for Biology, but I'm sure they will do another one for Anatomy and Physiology since this set of videos is not finished yet.
+Christopher Sadlowski hey just letting you know that they made the immune ones already. The 2nd part came out yesterday, but part 3 is coming up next week i'm actually excited for it haha
Ivan Gonzalez YAY! Now I have something to watch when I'm all settled in tonight! :D Thanks for the head's up.
This is helping pass anatomy ! 😁 thanks
About the bilirubin - why do we get rid of the haem group? It looks pretty difficult to make, so wouldn't it be more efficient to reuse the whole molecule instead of just the iron atom?
Could you please do a series on crash course physics?
I love these videos. Thank you!
Hello crash course :) I don't suppose you know when the next episode will be put up on here do you? :)
Brilliant as always crash course
So, blood dopers poop more?
Thanks, CrashCourse.
I can't believe this is free, seriously...
Thank God there's smart people in this world 👍❤️
Can you do a video about how hyperbaric oxygen therapy with the pressure and oxygen helps heal your tissues etc
Not sure I could pass any of my college science courses without Crash Course!
you should make merch for that plush fish. if you agree plz spread it around it around to other parts of the channel
Thanks ❤️
this episode is dope
I died when the "Late Erythroblast" spat out the organelles making a little "blah" sound LOL
These videos are AWESOME !!!
If I remember correctly, most of the transport of carbon dioxide in the blood is dissolved in the plasma (which then does the carbonic acid/bicarbonate buffer thing), not in the erythrocytes. Unless that's what you mean that you'll discuss it in the respiratory system section . . .
Tiny, bloody breath mint -- Oh Hank, you are too funny!
thanks that was helpful
and i want an ep about platelets
Thank you, for this video.
I really need some info on the relevance of specific vitamin intake and the production of white blood cells or how they contribute to bone marrow growth. Please help. My moms in the hospital with a low white blood cell count and my doctor thinks smoothies with spinach, nuts and seeds is pointless. Thanks so much.
You are the BEST!
Excellent episode!
I want a red blood cell pillow!!! They're so dang cute!
This episode made me cry when the white blood cell ate the old red blood cell. 😢😢😢 That poor, sweet old cell.
white blood cells are badass
Alexandria Ingram I thought it was kind of beautiful the way it's recycled.
RosesAndIvy yeah then it become a killer machine