Blood, Part 1 - True Blood: Crash Course Anatomy & Physiology #29

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  • čas přidán 27. 06. 2024
  • Now that we've talked about your blood vessels, we're going to zoom in a little closer and talk about your blood itself. We'll start by outlining the basic components of blood -- including erythrocytes, leukocytes, platelets, and plasma -- as well as the basic process of hemostasis that stops bleeding, and how antigens are responsible for the blood type that you have. By the end of this episode, you should be totally prepared for your next blood drive.
    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: Let's Talk Blood 00:00
    How Blood Donation Works 2:00
    Blood Components: Erythrocytes, Leukocytes, Platelets, and Plasma 3:00
    Plasma - Electrolytes 3:38
    Plasma Proteins 4:03
    Hemostasis: How Bleeding Works 4:30
    Antigens & Blood Types 6:21
    Review 9:05
    Credits 9:32
    ***
    Crash Course is on Patreon! You can support us directly by signing up at / crashcourse
    Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
    Mark, Jan Schmid, Simun Niclasen, Robert Kunz, Daniel Baulig, Jason A Saslow, Eric Kitchen, Christian, Beatrice Jin, Anna-Ester Volozh, Eric Knight, Elliot Beter, Jeffrey Thompson, Ian Dundore, Stephen Lawless, Today I Found Out, James Craver, Jessica Wode, Sandra Aft, Jacob Ash, SR Foxley, Christy Huddleston, Steve Marshall, Chris Peters
    --
    Want to find Crash Course elsewhere on the internet?
    Facebook - / youtubecrashcourse
    Twitter - / thecrashcourse
    Tumblr - / thecrashcourse
    Support Crash Course on Patreon: / crashcourse
    CC Kids: / crashcoursekids

Komentáře • 946

  • @crashcourse
    @crashcourse  Před 4 lety +144

    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

  • @yesicahernandez5846
    @yesicahernandez5846 Před 6 lety +654

    Passed my first anatomy class, and now you're making life easier for A&P II. We appreciate you Hank! (and team)

  • @nicktekula4928
    @nicktekula4928 Před 7 lety +1179

    Honestly the best page on youtube for all students around the country. And the world for the matter

    • @somaliyahh
      @somaliyahh Před 7 lety +11

      Nick T world*.

    • @toba6919
      @toba6919 Před 6 lety +2

      JUP! watching from Holland and probibly saved me from a 3 (F)

    • @toniaa-y3559
      @toniaa-y3559 Před 6 lety +9

      I'm in West Africa and this is the only reason why I am not lost in class

    • @thousandsummers134
      @thousandsummers134 Před 5 lety +3

      Yup, I'm in Thailand. Crash course has saved me in soooo much.

    • @yashasvipurohit6910
      @yashasvipurohit6910 Před 5 lety +4

      India here...this awesome channel has spread far n wide

  • @crimbleland
    @crimbleland Před rokem +77

    Coming back to thank Hank years later. I now work in healthcare and so much of my basic knowledge I’ve learned because of this crash course. Thanks Hank!

  • @alyssawinters6632
    @alyssawinters6632 Před 5 lety +105

    You know you're too deep into crash course when Hank starts getting more attractive as the semester goes one.

  • @Daywalker777r
    @Daywalker777r Před 8 lety +707

    the human body is like one awesome team with a terrible captain at least for me

  • @skizzler1232
    @skizzler1232 Před 4 lety +100

    Cut appears*
    Bacteria pops up: are you ready to die you cell?!?
    Platelete: Hold my coagulation factor
    T-cell: am I late to the party??

  • @nasrinn812
    @nasrinn812 Před 7 lety +122

    Crash course is the best channel on CZcams for students like me. They really make things easier to understand and thank you 😊

  • @blackmesa232323
    @blackmesa232323 Před 9 lety +471

    Watching this is a bloody good time. Hank almost red my mind.

    • @kitsunekyubino9345
      @kitsunekyubino9345 Před 9 lety +18

      blackmesa232323 You should go to the _pun_ itentiery.

    • @UzumakiNaruto-ez8jc
      @UzumakiNaruto-ez8jc Před 9 lety +46

      blackmesa232323 Didn't I tell you puns run in my *blood*. Be *A positive* part of the pun community and tell the others I'm the king, also tell them not to *B negative* about the new blood dynasty. Failure doesn't run through my *veins*. Where the *bloody* hell are my pun fans? You *aorta* be a fan too.

    • @blackmesa232323
      @blackmesa232323 Před 9 lety +13

      Uzumaki Naruto claps.

    • @guyshepard9658
      @guyshepard9658 Před 9 lety +25

      Puns aren't funny your efforts are in vein.

    • @UzumakiNaruto-ez8jc
      @UzumakiNaruto-ez8jc Před 9 lety +19

      Guy Shepard You don't have the heart to continue.

  • @aaronhughes1815
    @aaronhughes1815 Před rokem +5

    Passed my first anatomy class with the help of these videos and I’m currently crushing A&P II. If you’re struggling just keep watching crash course!

  • @heathercarter1297
    @heathercarter1297 Před 6 lety +81

    Just wanted to say thank you for your videos! I started watching your videos in 2015 when taking prereqs for my RN. Now I am graduating next week! You've helped alot with concepts.

  • @MarissaLaipsker
    @MarissaLaipsker Před rokem +6

    Thanks for helping me and all of my fellow nursing students pass A&P

  • @horiadinu8895
    @horiadinu8895 Před 4 lety +7

    I rather pay double my tuition to this guy and his family rather than my professor.. He's getting me through Nursing school, this man needs raise my word

  • @pereiramariana35
    @pereiramariana35 Před 9 lety +25

    my mother was rh negative and i was her second child with rh positive, they didnt know until i was born and i had to have blood transfusions as a new born, im so glad this was so well explained, i myself had a hard time understanding and explaining this to people, you guys are the best :3 love from a positive, who still doesnt know her blood type other than it being rh positive

    • @iwanebbing4944
      @iwanebbing4944 Před 9 lety

      ***** why suing...? You don't know her (i assume she's a she) age. The prevention of giving anti-RhD to RhD negative mothers with RhD positive baby's is not that old...

  • @whatsinaname7289
    @whatsinaname7289 Před 5 lety +5

    1:50 "... a part of you that is literally irreplaceable!"
    *goosebumps* JUST AMAZING INTRO!!

  • @DuranmanX
    @DuranmanX Před 9 lety +2061

    I'm guessing all the dislikes are coming from Crips

    • @barrymaguire4535
      @barrymaguire4535 Před 9 lety +41

      ***** Come on people, that deserves more thumbs up!

    • @WWZenaDo
      @WWZenaDo Před 9 lety +6

      ***** Ha, ha, Funnneeeee....

    • @elstormcaller
      @elstormcaller Před 9 lety +8

      ***** Well played

    • @markvalebcia8750
      @markvalebcia8750 Před 9 lety +9

      I dont get it Crips???disable people

    • @elstormcaller
      @elstormcaller Před 9 lety +29

      Mark Valebcia No, dude, its the name of a gang, their worst enemy are the bloods, geddit?
      The haters of the Bloods are the Crips?

  • @racheljones7339
    @racheljones7339 Před 6 lety +14

    CRASH COURSE YOU ARE A SERIOUS LIFE SAVER!! This channel makes anatomy interesting, easy to understand and even fun to learn. Thank you so much, this helps so much in my anatomy class.

  • @meganduckett4372
    @meganduckett4372 Před 7 lety +9

    This channel helps me so much with my anatomy and physiology tests. Hank goes over a lot of key points that my instructor did, and he explains it a little better to be honest.

  • @thelinsey09
    @thelinsey09 Před 5 lety +15

    I may be 4 years late saying this... but my curiosity about my low white blood cell count lead me to your videos. Your explanations and visuals really help me understand everything. Thank you so much.

  • @palashgupta3521
    @palashgupta3521 Před 9 lety +14

    Just one word AWESOME...AWESOME...AWESOME...
    Plz make videos for Physics and Chemistry as well...
    Thanks a lot TEAM CRASH COURSE...

  • @lienia83
    @lienia83 Před 7 lety +5

    This program is so awesome! Has gotten me through some tough concepts in my Ana, Phy, and Chem classes

  • @mjay3514
    @mjay3514 Před 5 lety +12

    I am officially a fan ... You've acquired a new subscriber! Thank you for this great information!

  • @angelofhope7778
    @angelofhope7778 Před 6 lety +6

    This channel has gotten me 87% on my anatomy physiology exams. Thank you so so much crash course!! My number 1 study tool!

  • @NathanAndRose
    @NathanAndRose Před 9 lety +58

    Interesting fact: while the AB and Rhesus blood groups are the most common blood types for consideration with blood transfusions, there are actually dozens of different blood type groups, that all measure different things. For example, an individual can be AB, D positive, and at the same time M and N positive (MNS system), K positive (Kell system), Le^a or Le^b negative (Lewis system), and so on.
    ...It took me forever to memorize all of these in school :/ haha
    -Nathan

    • @FrozakRL
      @FrozakRL Před 6 lety +1

      Nathan Hutchcraft thanks Nathan haha found this interesting even though I'm commenting late :) hope your doing well

    • @shivanishastri4285
      @shivanishastri4285 Před 6 lety +2

      Nathan Hutchcraft me too, we were tested on this with so much more! Was this in med school?

  • @helixentertainment5890
    @helixentertainment5890 Před 4 lety +12

    This literally summed up the entire 2nd chapter of my textbook for my Anat Phys 2 class.

  • @ericacuevas2301
    @ericacuevas2301 Před 5 lety +6

    How did you make this so easy? We've been going over this for weeks and it all makes sense now. THANK YOU! When I'm a pharmacist and not eating ramen I will support crash course forever

  • @omranhashim1028
    @omranhashim1028 Před 9 lety +10

    I didn't think I'd learn much because I usually get lost with all the words in biology. But this is actually very well taught. Thank you team Crash Course

  • @hannahjackson6860
    @hannahjackson6860 Před 5 lety +5

    You are the reason I have a 99% in my anatomy& physiology class right now. Thank you so much for your videos!

  • @TheCalm25
    @TheCalm25 Před 9 lety +2

    I watch every single one of Crash Course's videos, and have for a couple years now. I want to say how absolutely expertly these series' are done. I would never, ever want to listen to anyone tell me about the things I learn on Crash Course. But the hosts of each of the series' have such a critical sense of not sounding arrogant nor condescending. I don't know how the group got together, but it's one of the very rare instances in human kind's history which will remain mysterious as far as how such a truly extraordinary group of people (each absolutely extraordinary and forward thinking in their own personal way, and through their own individual lives) found each other, chose to each make a go of this, and came together in such a cohesive, consistently unique, genuine, and somehow entertainingly knowledgeable way.

  • @rohithr3072
    @rohithr3072 Před 4 lety +287

    Don't read this you have got a lot of studying to do...

  • @maryannvictoria4750
    @maryannvictoria4750 Před 4 lety +5

    Totalmente impactada con la calidad de la informacion, la animacion y la accesibilidad. Gracias a todas las personas que hacen esto posible.

  • @deemon710
    @deemon710 Před 9 lety +3

    I've heard the different kind of blood types described several times before but I never quite grasped it until this video with it's very helpful visual aids. Thank you.

  • @HowToMeetSweet
    @HowToMeetSweet Před rokem +2

    Crash course is the best channel, if not one of one ! 😮

  • @Vipin-kq5mg
    @Vipin-kq5mg Před 6 lety +16

    Thats the cutest WBC I've ever seen! 😁😁😁

  • @iamjacksusername85
    @iamjacksusername85 Před 8 lety +6

    thank you sooooo much for this video. I was having really hard time understanding blood antigens and their relationship with doning blood. This video saved my bacon!

  • @mohammadmokhtarrashedjibla4742

    thank you for being here for us crash course you really made life much easier for us.

  • @butterlover7592
    @butterlover7592 Před 4 lety +3

    3:16 like the master sword. You can even see the triforce on it.

  • @SyedHousein
    @SyedHousein Před 8 lety +244

    The white blood cells carry the Master Sword!

  • @christinevakas92
    @christinevakas92 Před rokem +1

    Ah, I'm at the end of my course - thank you so much for all these CZcamss. You and your team have made studying a pleasure, actually had many laughs, and learned so much.

  • @isabelgallegos6294
    @isabelgallegos6294 Před 5 lety +1

    I just love all of these videos! Very informative. Very helpful and well explained. Love it

  • @fortuna19
    @fortuna19 Před 8 lety +3

    I love that little reference to Rapsutin when talking about blood clotting. I'm studying the Russian Revolution

  • @Sproklye
    @Sproklye Před 8 měsíci +4

    is that rasputin in 6:14?

  • @lavishdabas9549
    @lavishdabas9549 Před 5 lety +1

    I visited this channel for the first time and now i can say that it is the *bestest* video i watched today

  • @4dleons
    @4dleons Před 7 lety +1

    I really enjoyed this, thank you.

  • @danpham8963
    @danpham8963 Před 7 lety +55

    The Leukocyte with the Master Sword lol

  • @kaboom138
    @kaboom138 Před 8 lety +74

    Did anyone else notice Rasputin at 6:10 when Hank was talking about hemophilia?

    • @marinescastellanos6157
      @marinescastellanos6157 Před 8 lety +1

      OMG TOTALLY XD

    • @jerzymajka9460
      @jerzymajka9460 Před 7 lety +1

      I thought exactly the same thing. Has anyone noticed Rasputin and does someone know what he has in common with hemophilia?

    • @marinescastellanos6157
      @marinescastellanos6157 Před 7 lety +12

      Jerzy Majka Hey! So Rasputin was a holy man who became associated with the Russian royal family. The tsarevich, Alexei had hemophilia, so Rasputin was called in to heal the prince. It worked, the prince felt better and so from then on Rasputin became a recurring figure in the royal family, which was VERY controversial at the time. XD

    • @jerzymajka9460
      @jerzymajka9460 Před 7 lety +4

      Thank you for explanation :)

    • @marinescastellanos6157
      @marinescastellanos6157 Před 7 lety

      Jerzy Majka Al No prob 😋

  • @Boognish2784
    @Boognish2784 Před 7 lety +2

    I completely love all of these A&P videos!!! They are really helping me and they are so entertaining!

  • @teedtad2534
    @teedtad2534 Před rokem +1

    Love videos like this with illustrations! 💵💵🫑💵🫑

  • @probablyapossum
    @probablyapossum Před 8 lety +208

    Did that white blood cell have a master sword?
    I HAVE MASTER SWORDS IN MY BLOOD

    • @smooshfanultra
      @smooshfanultra Před 8 lety +6

      +HeroHeart14z Actually, white blood cells use magic to attack, you idiot.

    • @PsychoDiesel48
      @PsychoDiesel48 Před 8 lety +2

      +XXX_ “SANIC” _XX NO ONE, FUCKS . . . WITH THE WHITE MAGE! XD

    • @smooshfanultra
      @smooshfanultra Před 8 lety +1

      Diesel Marcus What's wrong with black mage? You racist.

    • @PsychoDiesel48
      @PsychoDiesel48 Před 8 lety

      XXX_ _XX it was a quote chill XD

    • @smooshfanultra
      @smooshfanultra Před 8 lety

      Diesel Marcus That's sexist.

  • @anastaciafrizzell4885
    @anastaciafrizzell4885 Před 5 lety +3

    Lol that leukocyte was holding a master sword 🗡 😂😍

  • @shivamnrwl
    @shivamnrwl Před 8 lety +1

    CrashCourse is really awesome... Especially the animation part.

  • @scare-a-medic9112
    @scare-a-medic9112 Před 5 lety

    Seriously these videos are great right before I take a test. Thank you!

  • @whisper-hc5vx
    @whisper-hc5vx Před 4 lety +23

    When you’re watching in March 2020 where blood drives are shut down because of the coronavirus

  • @JohnSF93
    @JohnSF93 Před 9 lety +5

    O- here. been giving blood since I turned 18

  • @ellasmith7568
    @ellasmith7568 Před 8 lety

    great video!! just summed up everything I've learnt for my test!!

  • @nicolemcdonald9231
    @nicolemcdonald9231 Před 4 lety +1

    Idk what it is but whenever I get sleepy studying all I have to do is look up a Crashcourse video and it wakes me up and gets me pumped to study some more!

  • @Laske_smash
    @Laske_smash Před 8 lety +7

    I like the fact that the leukocytes has the master sword from The legend of Zelda series

  • @iLov3makeupx
    @iLov3makeupx Před 7 lety +7

    Why am I paying thousands of dollars for a college course when CZcams teaches better..

  • @Varaten
    @Varaten Před 9 lety

    Thanks Crash Course for doing these videos, I like all you guys videos!

  • @xxtreemtv2404
    @xxtreemtv2404 Před 8 lety

    Thank you...well explained, well understood.Bless!

  • @sierraslaugh6071
    @sierraslaugh6071 Před 8 lety +5

    Hanks hair tho

  • @nordicrain
    @nordicrain Před 5 lety +8

    5:07
    anone anone

  • @helloshanaynay
    @helloshanaynay Před 9 lety +2

    This series has been so helpful to my summer class at Rutgers! Thank you!

  • @r.m.a4615
    @r.m.a4615 Před 6 lety

    Thank you . You are making things easier for students and teachers too .

  • @themrkindmanful
    @themrkindmanful Před 7 lety +4

    The best man ever and the best show ever...for any student it is a time savier... thus mean MY life savier which end to be ..YOU my real hero. real thanks for you and also for donors thats keep it alive.

  • @QUICKFACTS247
    @QUICKFACTS247 Před rokem +4

    "its just a body" but if you know deeply how the system work.... truly God has put so much effort ❣️🥺

  • @codebluedr
    @codebluedr Před 6 lety

    excellent lecture with just perfect speed , my kind of presentation
    loved it

  • @jamesdavies6755
    @jamesdavies6755 Před 7 lety

    This guy explains it so well!!! Thanks

  • @sameerathreya9253
    @sameerathreya9253 Před 8 lety +13

    "The property of Hank!" Hah!

  • @headpump
    @headpump Před 5 lety +16

    "now you're bleeding all over your breakfast.."

  • @sharlaaliza6131
    @sharlaaliza6131 Před 6 lety +1

    Thank you so much, this is very helpful

  • @sitihaurakhairani1121
    @sitihaurakhairani1121 Před 7 lety +1

    definitely my hero for mention true blood haha! such a nice page for learning anatomy and physiology

  • @99thTuesday
    @99thTuesday Před 9 lety +44

    Was that Rasputin over Hank's Shoulder?

    • @rileydermanuelian7307
      @rileydermanuelian7307 Před 4 lety +6

      Four years too late, but the reason is because the Romanov family hired Rasputin, a holy man, to treat their son Alexei's (the heir of the throne of the Russian Empire) hemophilia. It worked, surprisingly. No one knows what he did exactly (he kept it secret because he wanted a reason to stay close to the family), but it is suspected that he removed something that was making him more ill (can't remember what) from his environment.

  • @__RD14533
    @__RD14533 Před 9 lety +45

    Brawndo - Its got what plants crave. Its got electrolytes!

    • @ChrisThomasBone
      @ChrisThomasBone Před 9 lety +8

      OwenBruch22 Water's what they put in toilets and I ain't never seen a plant grow out of a toilet!

    • @SusanWojcucki
      @SusanWojcucki Před 9 lety +2

      Electrolytes are just any material that ionizes when dissolved in an ionizing solution (like water)

    • @bobhope4288
      @bobhope4288 Před 9 lety +2

      SubscribeToSyndicate You think Einstein walked around thinking everyone was a bunch of dumb-shits? Now you know why he built that bomb.

    • @SusanWojcucki
      @SusanWojcucki Před 9 lety

      Bob Hope What?

    • @__RD14533
      @__RD14533 Před 9 lety +4

      SubscribeToSyndicate They are all quotes from Idiocracy, it's a movie.

  • @mamamia_144
    @mamamia_144 Před 8 lety +1

    Hank! is back! :) so happy!!!!!!!

  • @vvvb247
    @vvvb247 Před 5 lety +1

    Amazing
    It's really useful

  • @Bankstercide
    @Bankstercide Před 9 lety +6

    "Your blood is the one component of your body that we haven't figured out how to reproduce synthesize or imitate."
    That's great. It might be more impressive once we've got a better handle on Immunology.

    • @nyx5939
      @nyx5939 Před 4 lety

      I think he was talking about the brain there 😂

  • @MelissaFlaquer
    @MelissaFlaquer Před 9 lety +3

    8:50 actually the antibodies from the mother attack the baby, not the other way around, in most of the cases. To answer the obvious question of why on the Rh group matters in the case of mother to fetus blood contact it is because the antibodies against ABO antigens do not cross the placenta but Rh antibodies do.

  • @benjamingiddings4855
    @benjamingiddings4855 Před 4 lety

    absolutely BRILLIANT ! THANKS

  • @andeemasterson4588
    @andeemasterson4588 Před 5 lety

    Crash Course is my favorite!!!! Thank you!

  • @caribbeanqt16
    @caribbeanqt16 Před 6 lety +11

    I like crash course but I think the host speaks too fast. I'm a slow learner so the rapid speaking kind of confuses me. Other than that, I really do appreciate this crash course :-D

    • @matthewhardwick365
      @matthewhardwick365 Před 5 lety +2

      Playback speed 0.75? Makes Hank sound like he was dropped as a child tho.

    • @robinclarke8736
      @robinclarke8736 Před 4 lety

      Just slow the speed down easy fix, also try professor dave explains!

  • @zarnainsrequiem4677
    @zarnainsrequiem4677 Před 4 lety +45

    Whos here at 2019?

  •  Před 6 lety

    Nice work.

  • @crisharrell
    @crisharrell Před 3 lety

    This is bloody awesome as usual. Thanks Crash Course!!! A great big 👍👍’s up!!!!!

  • @DanThePropMan
    @DanThePropMan Před 9 lety +5

    Blood trees would be freaky af... o.O

  • @nmmeswey3584
    @nmmeswey3584 Před 9 lety +3

    LAST!!!11!!

  • @AC-gj5cg
    @AC-gj5cg Před 5 lety

    Very helpful videos!! I really appreciate!

  • @ReaperEpisodes
    @ReaperEpisodes Před 9 lety +1

    Always wondered what the blood types meant. Very informative, as always.

  • @4001Jester
    @4001Jester Před 9 lety +7

    Wondering how this is blood part TWO…

    • @truboo4268
      @truboo4268 Před 9 lety +2

      ***** No, because the thumbnail still says 'Part 1'

  • @draconianking
    @draconianking Před 9 lety +32

    O- Master Race reporting in

    • @cortster12
      @cortster12 Před 9 lety +34

      Michael Spencer Until you need a transfusion, and then you wish you were AB+.

    • @thecynic807
      @thecynic807 Před 9 lety +3

      Where did you get this master race shit from

    • @yeahoh2222
      @yeahoh2222 Před 5 lety

      *yeet in*

  • @lilmona1998
    @lilmona1998 Před 5 lety

    HE TALKS SO FAST! I LOVE IT

  • @alejandrobugarin9146
    @alejandrobugarin9146 Před 5 měsíci

    Thank you, for this video. Very informative.

  • @finnmurtons8727
    @finnmurtons8727 Před 6 lety +6

    Hataraku Saibou OVA 1

    • @Abominatrix650
      @Abominatrix650 Před 5 lety

      Red Blood Cell-chan - the only waifu who will ever truly be in your heart!

  • @animepug8159
    @animepug8159 Před 6 lety +8

    cells at work brought me here

  • @EzloTheKing
    @EzloTheKing Před 9 lety

    Hank is he best you've helped me with a lot or stuff in my biology class thank you! Your awesome :)

  • @renuraj1903
    @renuraj1903 Před 4 lety

    The explanation was really good.

  • @lisabanks1015
    @lisabanks1015 Před 8 lety +7

    Hank said "flavor" when he was referring to blood type...HA!

  • @14.huanle60
    @14.huanle60 Před 6 lety +6

    come here after Hataraku Saibou !

  • @menuradesilva5150
    @menuradesilva5150 Před 6 lety +1

    what a nice video machung! much love from Sri Lanka XOXO!!! :)

  • @kanoaisgermanzgaming2044

    *Hank thanks for information, btw makingvthese videos actually help me in my studies*