Coagulation cascade | Human anatomy and physiology | Health & Medicine | Khan Academy

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  • Опубліковано 26 вер 2024
  • Created by Patrick van Nieuwenhuizen.
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КОМЕНТАРІ • 369

  • @MuhammadZubair-mp6cm
    @MuhammadZubair-mp6cm 4 роки тому +238

    I studied Robbin's pathology, I studied guyton and believe me, these 14 minutes have stood more valuable for me than those 20 pages of textbooks

    • @kerrybiery6360
      @kerrybiery6360 2 роки тому +2

      Exactly! Those who really know how complicated this whole coagulation thing is have great respect for this presentation. Of course, this presentation is targeted towards an entry-level allied health students: nurses, paramedics, respiratory therapists, etc. I am a nurse (now retired, thank God) with an extensive background teaching allied health students, and many years of experience in ICU, PACU, ER, and Med-Surg. and I’ve forwarded these coag. videos to colleagues who’ve enjoyed them as I have.

  • @rishavmadhukalya2
    @rishavmadhukalya2 3 роки тому +32

    World needs more teachers like you...

  • @daisymay8488
    @daisymay8488 9 років тому +32

    Nicely broken down and very easy to follow! I swear, I spend an hour just trying to read about this stuff, but watching a 15 minute video and I completely grasp the concept now! Thanks a lot!

  • @wellman15able
    @wellman15able 4 роки тому +14

    "lets say you weren't very good at counting" omg that entire part brought my sides into orbit

  • @markblaze4746
    @markblaze4746 6 років тому +214

    I felt less dumb after watching this video, my lecturer talked like a machine gun

  • @HampsteadO
    @HampsteadO 2 роки тому +13

    10 years out of college and I tried to learn it in multiple occasions from so many different textbooks and you did it in 14 minutes. Thanks 🤣😍

    • @christinelouis7493
      @christinelouis7493 8 місяців тому

      Studying this cascade from the pov of different subjects at college and never been able to carack it doen like today

  • @Schatten2712
    @Schatten2712 8 років тому +91

    honestly, after the complement system this is like a walk in the park

    • @gh-ps5es
      @gh-ps5es 7 років тому +5

      It's the opposite for me? But this was still pretty easy to understand. Guess it depends on who u r learning from as well

    • @kkomber6888
      @kkomber6888 5 років тому +1

      @@gh-ps5es how is it easy for you I am dying trying to learn them 😂💔

  • @seafoam7095
    @seafoam7095 4 роки тому +22

    Been studying this sh*t for ages and you taught me the easiest way to remember it! I like how you said about the numbers (factors) ultimately leading to the 'goal.' And yes it worked for me because I'm bad at counting lmao

  • @abiazizahmed2808
    @abiazizahmed2808 4 роки тому +3

    A living legend...man u dont know how much u help...i can only say God bless u

  • @tatner7146
    @tatner7146 4 роки тому +12

    It's just wonderful how you organize notes so that it can be easily remembered! Love your videos!

  • @Sali_Levi
    @Sali_Levi 8 років тому +22

    Extremely clear explanation!! amazing

  • @yksci2740
    @yksci2740 11 місяців тому +1

    I’m about to cry this video helped me more than I could imagine

  • @robynneRN
    @robynneRN Рік тому +2

    This was fascinating. I am learning about anti-coagulants in nursing school, and this really helped me with the foundation as to WHY we bother with PTT, PT/INR lab values. Thank you!

  • @dr.h.a.bpediatrics8999
    @dr.h.a.bpediatrics8999 2 роки тому +2

    Thank you very much sir .. Thats how medicine should be explained to doctors .. 👍

  • @kthekactus
    @kthekactus 2 роки тому +2

    This was amazing! I was struggling to fully understand my uni lecture on coagulation but this video made it so much easier by going thru the steps diagrammatically and vvv simply! v relevant + to the point too, no waffle!!

  • @riyaroka
    @riyaroka Рік тому +2

    Fell in love with the explanation, its saving the life out of me. Thank you sm❤️❤️❤️

  • @lobarita
    @lobarita 2 роки тому +1

    You have helped me understand this thru the past several months. It took a while, but it's all coming together. Thank you.

  • @girldetective18
    @girldetective18 9 років тому +7

    God bless you!! You explain this so well and oh my gosh I needed this!

  • @shalomsiansangu9179
    @shalomsiansangu9179 2 роки тому

    Best best vedio on coagulation cascade I've come across

  • @hadjerswift4519
    @hadjerswift4519 4 роки тому +2

    This is very helpful and easy to understand ,also loved the tricks to memorize it better

  • @jedidiahmanna3863
    @jedidiahmanna3863 3 роки тому +2

    Omg …. This video is so good. I had to pause it halfway to give a thumbs up and comment. I am phlebotomist, and I have been wondering how anti Xa works. With all the video I have gone through online. This video, I believe is the best. The cascade is well explained with tricks to help me remember. I will love to explain to some of my patients this amazing biological process in our human body. Thank you for this amazing 🤩 video 🙏

  • @AJohnson0325
    @AJohnson0325 6 років тому +1

    thanks! I have to study 140 pages of notes on anticoagulant, anti-platelet, and fibrinolytic drugs. This is going to help me a bunch.

  • @jcvn8915
    @jcvn8915 Рік тому

    No way i can describe how much of a great helpful and intelligent human being you are

  • @hannahfuller6088
    @hannahfuller6088 8 років тому +100

    "Assuming you have those friends" LOL

  • @BeautiFAHT
    @BeautiFAHT 2 роки тому

    This is the absolute BEST video I've watched on intrinsic/extrinsic pathways! Such a clear understanding now! THANK YOU!

  • @admoh8835
    @admoh8835 5 років тому

    This video deserves noble prize in education

  • @mandaparker21
    @mandaparker21 6 років тому +1

    Videos like this make me love UA-cam. Great job! I loved the visuals.

  • @joshuaharris5605
    @joshuaharris5605 Рік тому

    Almost a decade later and still the best video on the net to learn clotting factors

  • @CollinScottTibbitts
    @CollinScottTibbitts 26 днів тому

    One of the best coagulation videos out there!

  • @МилорадЈеремић21
    @МилорадЈеремић21 5 років тому +4

    omg, you are my hero, god bless you, im gona smash this knowledge right to my profesor face, thank you so much!!!

  • @dareenashgar1965
    @dareenashgar1965 7 років тому +1

    Easiest way to remember it, thank you so much!

  • @janineschwegman7920
    @janineschwegman7920 8 місяців тому

    Most beautifully explained - thank you!

  • @mutelarsorhougbe4606
    @mutelarsorhougbe4606 8 місяців тому

    This was so so very well explained!
    And I love the little things to help us remember it!

  • @tiffanyann9936
    @tiffanyann9936 2 роки тому

    Thank you. This was much easier to follow than the first two I watched.

  • @JohnCitizenCitizen
    @JohnCitizenCitizen 10 років тому +6

    such a good teacher. thanks for making this!

  • @JuanCarlosMedinaAgredo
    @JuanCarlosMedinaAgredo 4 місяці тому

    Great video, greetings from Colombia Armenia U. Humboldt

  • @mc_dibia
    @mc_dibia 7 років тому

    this was beautifully done. it made so much sense. if my lecturer only showed this video instead of talking for an hour

  • @SethMundall
    @SethMundall 4 роки тому +3

    "...while evolution was designing us". Wow! Such an intelligent designer evolution is. How people can believe this masterpiece just came together with no design is beyond human comprehension or reason.

    • @samphonnetgamgee5625
      @samphonnetgamgee5625 4 роки тому +1

      They're stubborn

    • @francesca95
      @francesca95 Місяць тому +1

      I thought the same thing! Such a betrayal of their own beliefs to personify a seemingly meaningless and random process!

  • @nontobekomdluli
    @nontobekomdluli 4 роки тому

    this is amazing...you are God's sent. my teacher makes it look so complicated...

  • @hana-bt7rf
    @hana-bt7rf 2 роки тому

    best video? no best video EVER!!!

  • @enoente1888
    @enoente1888 2 роки тому

    I tried to learn this a couple of years ago for my exams and I must confess, I could not answer the question. Listening to this video and watching you create such a complex concept so simply is so good, thank you

  • @preciousbankole6350
    @preciousbankole6350 8 місяців тому

    Wow this explanation was amazing

  • @ohheyitsadrian4412
    @ohheyitsadrian4412 8 років тому

    Just Khan Academy saving the day again. thanks!

  • @gangabahadurlimbu1239
    @gangabahadurlimbu1239 7 місяців тому

    Brilliant Lecture.

  • @Abdulelah_
    @Abdulelah_ 2 роки тому

    The best explanation I ever had in coagulation cascade I wish you where our lecturer 🥹

  • @nadaramadan5709
    @nadaramadan5709 4 роки тому

    amazing... i am an egyptian vet and i love your videos so much 💙💙💙

  • @cat5220
    @cat5220 11 місяців тому

    thank god for this channel... about to singlehandedly save my degree!!

  • @sbbperson
    @sbbperson 3 роки тому

    I clicked on your video by accident. But your video and explanation skills were so good, I subscribed. Thank you for the information, this is great!

  • @nooranoor6221
    @nooranoor6221 6 років тому

    I alway look for videos from Khan academy .. always useful .. many thanks ❤️

  • @jessc7952
    @jessc7952 4 роки тому +2

    you just explained in 15 minutes what my lecturer failed to do in 3 hours

  • @memoboy4141
    @memoboy4141 4 роки тому

    Thanks for existing

  • @kmirandakondo
    @kmirandakondo 2 роки тому

    This video is an A for brilliant explanation

  • @aishwarya_ganapathy
    @aishwarya_ganapathy 6 років тому +1

    i just love the way you teach along side how to remember it. i wish my teachers were like this! :/ thanks

  • @MasterThil29
    @MasterThil29 10 років тому

    It's not easy getting your head around this but you did a great job of explaining all the pathways. Thanks.

  • @raspberry765
    @raspberry765 5 років тому +15

    "you'd become one large walking clot" HAHAHAHAH

  • @DC-qk7hx
    @DC-qk7hx 4 роки тому

    Brilliant delivery. Thank you!

  • @徐丹-u7f
    @徐丹-u7f 2 роки тому

    it's REALLY helpful, thanks.

  • @primeascendant797
    @primeascendant797 Рік тому +1

    Zymogen forms are one of the most amazing things in the body, in my view. Your body is locked and loaded to do so many things, it's very efficient. Especially in this case, when something soluble is turning into something insoluble.

  • @shannonhogan5859
    @shannonhogan5859 3 роки тому

    Wow - great little story to remember the factors :) thanks!!

  • @befriendGPT
    @befriendGPT 7 років тому +1

    wow this video is super good! im gonna leave a comment here!
    ...and then i saw who published it; OH! KHAN! i knew it. thanks khan academy ;)

  • @kunsang8977
    @kunsang8977 5 років тому

    Great help. Big thanks

  • @jhessiecdj1211
    @jhessiecdj1211 4 роки тому +1

    thank you Patrick for the very informative lecture :)

  • @Jongui_
    @Jongui_ 4 роки тому

    Seriously, this video is amazing.

  • @thinoronha
    @thinoronha 6 років тому

    Great explanation!

  • @Its.me.2234
    @Its.me.2234 6 років тому

    Very simple to understand it by these little cute drawings .
    Thanks a lot .

  • @jl981015
    @jl981015 6 років тому +1

    Clotting factor 2 is actually Prothrombin, not thrombin. Thrombin is 2a. Great Video!

  • @1412Z
    @1412Z 2 роки тому

    Thank you so much for your efforts in doing this video!! God bless you

  • @Unarine.Ratombo
    @Unarine.Ratombo 2 роки тому

    thank you so much for this video, so easy to follow

  • @TheRosagirly
    @TheRosagirly 3 роки тому

    such a clear simple explanation thank u!!

  • @ForYourConsideration
    @ForYourConsideration 7 років тому

    Thank you for the excellent lesson. The amplification sequence explanation (07:16) was very helpful in understanding the significance of the activation process.

  • @FishoeShoe_da_great
    @FishoeShoe_da_great 4 місяці тому

    this literally just rewired my whole brain

  • @ManpreetSingh-gc6bo
    @ManpreetSingh-gc6bo 6 років тому

    it's just awesome! you simplified it like a boss

  • @dopechick457
    @dopechick457 2 роки тому

    U made it so easy

  • @ranikhan3963
    @ranikhan3963 5 років тому

    Helpfull in understnaging and memorizing too ...!!! Thank you ....!!!

  • @Esmeralda505
    @Esmeralda505 7 років тому

    You made this sound so easy and it made so simple to understand. Thank you so much!!!

  • @sudharshan6257
    @sudharshan6257 5 років тому

    this guy is just awesome..

  • @randa2113
    @randa2113 4 роки тому

    you have just saved me !!! thank you so much for the video

  • @cathg.956
    @cathg.956 3 роки тому

    im so happy i found your page!

  • @jazzlikesyoochoob
    @jazzlikesyoochoob 6 років тому

    this video is gold

  • @asha2393
    @asha2393 9 років тому +37

    Great summary, really useful; but you said the first step would be the platelets aggregating to the site of injury, but wouldn't the first step be vasoconstriction? This would significantly slow down the blood flow

    • @bhavnatrehan7664
      @bhavnatrehan7664 9 років тому +14

      I think it is because he is talking only about the clotting cascade with platelets and such, even though that would be the first part.

    • @user-rj8wm8oj1c
      @user-rj8wm8oj1c 6 років тому +1

      obviously...

    • @kastle5433
      @kastle5433 5 років тому

      @@user-rj8wm8oj1c If it was obvious then why bring it up? A little bit of a contradiction here lol.

    • @tennies9002
      @tennies9002 5 років тому

      Three years too late.. but vasoconstriction will be the first thing to occur in PRIMARY hemostasis. The coagulation cascade occurs in SECONDARY hemostasis. He shouldnt have worded it that way, but for this portion of hemostasis it makes sense.

  • @noayoung2849
    @noayoung2849 11 місяців тому

    I love you and this video, thank you so much

  • @douniasaleh8211
    @douniasaleh8211 8 років тому +2

    Thank you so much, I always come in this channel for help and you guys never disappoint me

  • @PsychNurseAsh
    @PsychNurseAsh 9 днів тому

    Thank you!

  • @LauraHernandez-dt9bb
    @LauraHernandez-dt9bb 4 роки тому

    Wow! You really helped me learn this material. I was so confused by my professor. Thank you !!

  • @giulyt.5468
    @giulyt.5468 3 роки тому

    Thanks for this amazing explanation!!

  • @fathimazahranoorgat5334
    @fathimazahranoorgat5334 7 місяців тому

    Really helpful thank you!!!

  • @zahraaammer8700
    @zahraaammer8700 Рік тому

    You did such a magnificent work over here
    Well done

  • @LaurenAWhite-cu9rc
    @LaurenAWhite-cu9rc 4 роки тому

    Incredibly helpful! Thank you!

  • @elghadi1639
    @elghadi1639 Рік тому

    so good thanks

  • @adventurevloggeradnanahmedusa
    @adventurevloggeradnanahmedusa 6 місяців тому

    Loved this.

  • @katelingates-gonzales7086
    @katelingates-gonzales7086 9 років тому +5

    What a great video. Thank you :) I would love to see a video like this and include how heparin, Coumadin, aspirin, etc works on this pathway. :)

    • @swas2907
      @swas2907 9 років тому

      yup

    • @mitchellornelas8348
      @mitchellornelas8348 8 років тому +1

      +Katelin Gates Subscribe to my channel, I will be posting the cntent in a matter of moments

    • @crvargasa
      @crvargasa 7 років тому +6

      That would make this video pretty lengthy and kind of long shot. Aspirin inhibits formation of TXA2 (thromboxane2) which is part of the primary hemostasis process. Coumadin inhibits epoxide reductase which activates Vitamin K. Vitamin K is necessary for gamma carboxylation of factors II, VII, IX, X and proteins C and S. And heparin inactivates thrombin (IIa) and Xa through another mechanism known as antithrombin dependent mechanism..
      Maybe in a different video it would be helpful

    • @sania1593
      @sania1593 7 років тому

      Katelin Gates ]b

  • @mounan6321
    @mounan6321 4 роки тому

    Thank you

  • @LitaMonroe1913
    @LitaMonroe1913 9 років тому

    This is exactly what I'm looking for! This is very helpful!

  • @danschmeidler
    @danschmeidler 5 років тому

    Fantastic. This is just incredible. Great job.

  • @andreacalabrese6193
    @andreacalabrese6193 8 років тому +1

    Thank you so much for your great videos! I got a better grade on my midterm from watching your videos!

  • @haileybailes3160
    @haileybailes3160 3 роки тому

    This was so helpful! Thank you so much.

  • @PonzooonTheGreat
    @PonzooonTheGreat 8 років тому +90

    Wow, thanks! My lecturers are shit! You explained in 15 minutes what my lecturer could not in an hour.
    What's heparin? I hear that comes into play when breaking down a clot or something.

    • @doktorone1666
      @doktorone1666 8 років тому +14

      Heparin is basically a natural anti coagulant protein . Natural because is made in your body. You can use it before performing a cannulation , you put some heparin on the tip of the needle to prevent blood clots from forming and eventually close the tip of that needle, which would make injecting drugs into the vein harder.. :P

    • @lukask.9870
      @lukask.9870 8 років тому +22

      Heparin promotes Antithrombin 3 (a serine protease). Antithrombin 3 inactivates Factors 2 and 10.

    • @nalapisa
      @nalapisa 7 років тому +7

      Doktor One True, only heparin is NOT a protein but a GAG (glicoseaminoglican) polymer.

    • @palshah2463
      @palshah2463 6 років тому +1

      PonzooonTheGreat it's an anticoagulant made by liver which keeps the blood in liquid form when the blood capillaries are not hurt

    • @Gossypol
      @Gossypol 5 років тому +2

      Does Prekallekrein and HMW Kininogen also includes in the intrinsic pathway? Please explain anyone. Thankyou.

  • @CristianoRaashid77
    @CristianoRaashid77 4 роки тому

    This was tooooooooooooooooooo good!!! Thank you so muchh

  • @ndapewa3245
    @ndapewa3245 5 років тому

    Thank you. Really made a big difference 👏🏽

  • @mohammedal-hammadi5085
    @mohammedal-hammadi5085 4 роки тому

    This video is pretty good, thank you so much really