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

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  • เผยแพร่เมื่อ 28 ส.ค. 2024
  • Created by Patrick van Nieuwenhuizen.
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ความคิดเห็น • 367

  • @MuhammadZubair-mp6cm
    @MuhammadZubair-mp6cm 4 ปีที่แล้ว +234

    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 ปีที่แล้ว +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 ปีที่แล้ว +30

    World needs more teachers like you...

  • @HampsteadO
    @HampsteadO 2 ปีที่แล้ว +12

    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 7 หลายเดือนก่อน

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

  • @daisymay8488
    @daisymay8488 9 ปีที่แล้ว +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!

  • @SethMundall
    @SethMundall 4 ปีที่แล้ว +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 3 ปีที่แล้ว +1

      They're stubborn

    • @francesca95
      @francesca95 5 วันที่ผ่านมา +1

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

  • @Schatten2712
    @Schatten2712 8 ปีที่แล้ว +90

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

    • @gh-ps5es
      @gh-ps5es 7 ปีที่แล้ว +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 ปีที่แล้ว +1

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

  • @abiazizahmed2808
    @abiazizahmed2808 4 ปีที่แล้ว +3

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

  • @markblaze4746
    @markblaze4746 5 ปีที่แล้ว +213

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

  • @hannahfuller6088
    @hannahfuller6088 8 ปีที่แล้ว +99

    "Assuming you have those friends" LOL

  • @seafoam7095
    @seafoam7095 4 ปีที่แล้ว +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

  • @tatner7146
    @tatner7146 4 ปีที่แล้ว +12

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

  • @wellman15able
    @wellman15able 4 ปีที่แล้ว +13

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

  • @robynneRN
    @robynneRN ปีที่แล้ว +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!

  • @jedidiahmanna3863
    @jedidiahmanna3863 2 ปีที่แล้ว +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 🙏

  • @yksci2740
    @yksci2740 10 หลายเดือนก่อน +1

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

  • @xXNightFighterXx
    @xXNightFighterXx 8 ปีที่แล้ว +22

    Extremely clear explanation!! amazing

  • @kthekactus
    @kthekactus 2 ปีที่แล้ว +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!!

  • @lobarita
    @lobarita 2 ปีที่แล้ว +1

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

  • @enoente1888
    @enoente1888 2 ปีที่แล้ว

    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

  • @dr.h.a.bpediatrics8999
    @dr.h.a.bpediatrics8999 2 ปีที่แล้ว +2

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

  • @riyaroka
    @riyaroka ปีที่แล้ว +2

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

  • @merhanessam
    @merhanessam 8 ปีที่แล้ว +15

    this video helped me alot ....i really spent days to try to understand this part :( .....but now everything is clear for me....thank u so much

    • @Andrew-kh7rz
      @Andrew-kh7rz 4 ปีที่แล้ว

      i really spent 2 to three fcking days to get used to insertions and origins of the muscles as well as the lumpy bits

  • @toddfennimore6625
    @toddfennimore6625 2 ปีที่แล้ว +1

    Wow! Amazing explanation - I have heard or read over a dozen lectures or articles on the clotting cascade, and I feel as though I finally understand it and can retain it.

  • @AJohnson0325
    @AJohnson0325 6 ปีที่แล้ว +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 ปีที่แล้ว

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

  • @cat5220
    @cat5220 10 หลายเดือนก่อน

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

  • @hadjerswift4519
    @hadjerswift4519 4 ปีที่แล้ว +2

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

  • @raspberry765
    @raspberry765 4 ปีที่แล้ว +15

    "you'd become one large walking clot" HAHAHAHAH

  • @BeautiFAHT
    @BeautiFAHT 2 ปีที่แล้ว

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

  • @shalomsiansangu9179
    @shalomsiansangu9179 2 ปีที่แล้ว

    Best best vedio on coagulation cascade I've come across

  • @primeascendant797
    @primeascendant797 ปีที่แล้ว +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.

  • @mutelarsorhougbe4606
    @mutelarsorhougbe4606 7 หลายเดือนก่อน

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

  • @nadaramadan5709
    @nadaramadan5709 4 ปีที่แล้ว

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

  • @jl981015
    @jl981015 6 ปีที่แล้ว +1

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

  • @user-xx3ds6tv4b
    @user-xx3ds6tv4b 5 ปีที่แล้ว +4

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

  • @sbbperson
    @sbbperson 3 ปีที่แล้ว

    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!

  • @jessc7952
    @jessc7952 4 ปีที่แล้ว +2

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

  • @mandaparker21
    @mandaparker21 6 ปีที่แล้ว +1

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

  • @gazamax3
    @gazamax3 8 ปีที่แล้ว

    then is one of the best videos ive ever watch in my whole medical school. THANX ALOT

    • @habib080
      @habib080 8 ปีที่แล้ว

      Which medical school do you go too?

    • @gazamax3
      @gazamax3 8 ปีที่แล้ว

      Ha080 it is in Turkiye, Ankara, yildirim beyazit university

  • @nontobekomdluli
    @nontobekomdluli 4 ปีที่แล้ว

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

  • @mc_dibia
    @mc_dibia 7 ปีที่แล้ว

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

  • @joshuaharris5605
    @joshuaharris5605 ปีที่แล้ว

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

  • @admoh8835
    @admoh8835 5 ปีที่แล้ว

    This video deserves noble prize in education

  • @HelloGTP
    @HelloGTP 7 ปีที่แล้ว +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 ;)

  • @janineschwegman7920
    @janineschwegman7920 7 หลายเดือนก่อน

    Most beautifully explained - thank you!

  • @tiffanyann9936
    @tiffanyann9936 2 ปีที่แล้ว

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

  • @dareenashgar1965
    @dareenashgar1965 7 ปีที่แล้ว +1

    Easiest way to remember it, thank you so much!

  • @MasterThil29
    @MasterThil29 10 ปีที่แล้ว

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

  • @aishwarya_ganapathy
    @aishwarya_ganapathy 6 ปีที่แล้ว +1

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

  • @preciousbankole6350
    @preciousbankole6350 8 หลายเดือนก่อน

    Wow this explanation was amazing

  • @nooranoor6221
    @nooranoor6221 6 ปีที่แล้ว

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

  • @ohheyitsadrian4412
    @ohheyitsadrian4412 8 ปีที่แล้ว

    Just Khan Academy saving the day again. thanks!

  • @thinoronha
    @thinoronha 6 ปีที่แล้ว

    Great explanation!

  • @JuanCarlosMedinaAgredo
    @JuanCarlosMedinaAgredo 3 หลายเดือนก่อน

    Great video, greetings from Colombia Armenia U. Humboldt

  • @JohnCitizenCitizen
    @JohnCitizenCitizen 10 ปีที่แล้ว +6

    such a good teacher. thanks for making this!

  • @gangabahadurlimbu1239
    @gangabahadurlimbu1239 7 หลายเดือนก่อน

    Brilliant Lecture.

  • @ForYourConsideration
    @ForYourConsideration 7 ปีที่แล้ว

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

  • @hana-bt7rf
    @hana-bt7rf 2 ปีที่แล้ว

    best video? no best video EVER!!!

  • @DC-qk7hx
    @DC-qk7hx 4 ปีที่แล้ว

    Brilliant delivery. Thank you!

  • @asha2393
    @asha2393 9 ปีที่แล้ว +38

    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 ปีที่แล้ว +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 ปีที่แล้ว +1

      obviously...

    • @kastle5433
      @kastle5433 5 ปีที่แล้ว

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

    • @tennies9002
      @tennies9002 5 ปีที่แล้ว

      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.

  • @katelingates-gonzales7086
    @katelingates-gonzales7086 9 ปีที่แล้ว +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 8 ปีที่แล้ว

      yup

    • @mitchellornelas8348
      @mitchellornelas8348 8 ปีที่แล้ว +1

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

    • @crvargasa
      @crvargasa 7 ปีที่แล้ว +7

      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 ปีที่แล้ว

      Katelin Gates ]b

  • @douniasaleh8211
    @douniasaleh8211 8 ปีที่แล้ว +2

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

  • @shannonhogan5859
    @shannonhogan5859 3 ปีที่แล้ว

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

  • @1412Z
    @1412Z 2 ปีที่แล้ว

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

  • @Abdulelah_
    @Abdulelah_ ปีที่แล้ว

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

  • @ivo3185
    @ivo3185 4 ปีที่แล้ว

    I-
    I finally understand. Thank you so much! Incredible video. You made the topic really easy to memorize!

  • @Esmeralda505
    @Esmeralda505 6 ปีที่แล้ว

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

  • @PonzooonTheGreat
    @PonzooonTheGreat 8 ปีที่แล้ว +91

    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 ปีที่แล้ว +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 ปีที่แล้ว +22

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

    • @nalapisa
      @nalapisa 7 ปีที่แล้ว +7

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

    • @palshah2463
      @palshah2463 6 ปีที่แล้ว +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 ปีที่แล้ว +2

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

  • @LitaMonroe1913
    @LitaMonroe1913 9 ปีที่แล้ว

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

  • @kmirandakondo
    @kmirandakondo 2 ปีที่แล้ว

    This video is an A for brilliant explanation

  • @memoboy4141
    @memoboy4141 4 ปีที่แล้ว

    Thanks for existing

  • @LauraHernandez-dt9bb
    @LauraHernandez-dt9bb 3 ปีที่แล้ว

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

  • @Its.me.2234
    @Its.me.2234 6 ปีที่แล้ว

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

  • @ManpreetSingh-gc6bo
    @ManpreetSingh-gc6bo 6 ปีที่แล้ว

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

  • @zahraaammer8700
    @zahraaammer8700 ปีที่แล้ว

    You did such a magnificent work over here
    Well done

  • @Jongui_
    @Jongui_ 4 ปีที่แล้ว

    Seriously, this video is amazing.

  • @jhessiecdj1211
    @jhessiecdj1211 4 ปีที่แล้ว +1

    thank you Patrick for the very informative lecture :)

  • @TheRosagirly
    @TheRosagirly 3 ปีที่แล้ว

    such a clear simple explanation thank u!!

  • @user-ky4zw4qp8j
    @user-ky4zw4qp8j 2 ปีที่แล้ว

    it's REALLY helpful, thanks.

  • @ranikhan3963
    @ranikhan3963 5 ปีที่แล้ว

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

  • @Unarine.Ratombo
    @Unarine.Ratombo 2 ปีที่แล้ว

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

  • @nicolle6620
    @nicolle6620 5 ปีที่แล้ว

    Great job! The visual illustration makes the lecture 1000% more understandable

  • @Raxorium
    @Raxorium 8 ปีที่แล้ว

    Very helpful video, a small thing is maybe you could explain when the thrombin activates its negative feedback. Is it when there is too much thrombin in the blood?

  • @randa2113
    @randa2113 4 ปีที่แล้ว

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

  • @cathg.956
    @cathg.956 3 ปีที่แล้ว

    im so happy i found your page!

  • @andreacalabrese6193
    @andreacalabrese6193 8 ปีที่แล้ว +1

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

  • @kamyarsharifi4064
    @kamyarsharifi4064 6 ปีที่แล้ว

    Im a dental school student and I've had this explained to me many a times, but never this well

  • @cathelaine_ong
    @cathelaine_ong 5 ปีที่แล้ว +13

    CRAMMING RN FOR A TEST LMAOOOO

    • @denirn8725
      @denirn8725 3 ปีที่แล้ว

      Cramming to TEACH clotting & endothelial damage during CoVid Cytokine Storm! Who knew nurses SHOULD learn & consider what’s happening with patients sinking from not too sick into REALLY, REALLY SICK due to clotting abnormalities?

    • @sbbperson
      @sbbperson 3 ปีที่แล้ว

      Did you pass?

    • @cathelaine_ong
      @cathelaine_ong 3 ปีที่แล้ว +1

      @@sbbperson I did!

    • @sbbperson
      @sbbperson 3 ปีที่แล้ว

      @@cathelaine_ong SALAMAT PO ATE

  • @danschmeidler
    @danschmeidler 5 ปีที่แล้ว

    Fantastic. This is just incredible. Great job.

  • @giulyt.5468
    @giulyt.5468 3 ปีที่แล้ว

    Thanks for this amazing explanation!!

  • @ndapewa3245
    @ndapewa3245 5 ปีที่แล้ว

    Thank you. Really made a big difference 👏🏽

  • @sherysss110
    @sherysss110 7 ปีที่แล้ว

    Absolutely brilliant and easy to remember! Thank you

  • @joaovitorpimentel2140
    @joaovitorpimentel2140 6 ปีที่แล้ว

    Awesome video! Maan... That helped me a lot! Thank you.

  • @kunsang8977
    @kunsang8977 5 ปีที่แล้ว

    Great help. Big thanks

  • @sudharshan6257
    @sudharshan6257 5 ปีที่แล้ว

    this guy is just awesome..

  • @jemappellelanoosh1743
    @jemappellelanoosh1743 8 ปีที่แล้ว

    Thank you for this great explanation .. You guys are awesome

  • @LaurenAWhite-cu9rc
    @LaurenAWhite-cu9rc 4 ปีที่แล้ว

    Incredibly helpful! Thank you!

  • @haileybailes3160
    @haileybailes3160 3 ปีที่แล้ว

    This was so helpful! Thank you so much.

  • @noayoung2849
    @noayoung2849 10 หลายเดือนก่อน

    I love you and this video, thank you so much

  • @mohammedal-hammadi5085
    @mohammedal-hammadi5085 4 ปีที่แล้ว

    This video is pretty good, thank you so much really