Lub Dub | Circulatory system physiology | NCLEX-RN | Khan Academy

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  • เผยแพร่เมื่อ 15 ม.ค. 2025
  • Ever wonder why the heart sounds the way that it does? Opening and closing of heart valves makes the heart rhythm come alive with its lub dub beats... Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.
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ความคิดเห็น • 470

  • @shuvrajyotichowdhury723
    @shuvrajyotichowdhury723 ปีที่แล้ว +53

    Dude posted this 10 years ago and saving lives for another few decades

    • @LAZG-vo2zo
      @LAZG-vo2zo 6 หลายเดือนก่อน

      So true

    • @R4v3nousJapanese-lo8wr
      @R4v3nousJapanese-lo8wr 18 วันที่ผ่านมา

      But schools won't take "old" science classes lol

  • @Epic117450
    @Epic117450 10 ปีที่แล้ว +509

    It's amusing how much better you are at teaching this than my bio teacher...

    • @mischb.1943
      @mischb.1943 10 ปีที่แล้ว +5

      I was essentially think the exact same thing. Lol

    • @nourai5653
      @nourai5653 7 ปีที่แล้ว

      Same

    • @anneliese2966
      @anneliese2966 7 ปีที่แล้ว

      same here

    • @jadeblu9294
      @jadeblu9294 7 ปีที่แล้ว +1

      Epic117450 dude, that why we're here. 😂

    • @shayona1460
      @shayona1460 5 ปีที่แล้ว +3

      I think ure graduated now =)

  • @paulson2008
    @paulson2008 7 ปีที่แล้ว +306

    Those dislikes are from teachers 👨‍🏫 who can’t teach like you do 😂😂❤️🤘🏼

    • @spiddyman0079
      @spiddyman0079 5 ปีที่แล้ว +3

      Na. It’s because he called the bicuspid valve the mitral valve

    • @christineshaw8320
      @christineshaw8320 4 ปีที่แล้ว +4

      I think they are nothing different. So why there are those dislikes?

    • @moody8386
      @moody8386 4 ปีที่แล้ว +3

      mitral valve is also called bicuspid valve

    • @kumarsushil3995
      @kumarsushil3995 4 ปีที่แล้ว +2

      @@spiddyman0079the bicuspid valve is also called the mitral valve.

    • @hafeezuddin1367
      @hafeezuddin1367 4 ปีที่แล้ว +1

      @@kumarsushil3995 but the mitral valve is also called the bicuspid valve

  • @riyajha788
    @riyajha788 7 ปีที่แล้ว +67

    There is no chance my biology teacher would have taught us like this....u r truly amazing sir🙏🏻

  • @kennethlincoln7598
    @kennethlincoln7598 10 ปีที่แล้ว +12

    I am taking my pre req'd A&P class for my upcoming Paramedic Program. Khan Academy has not only been a staple for my understanding of material for the class, but also for my life. THANK YOU KHAN ACADEMY!!!!

  • @syberspy9
    @syberspy9 10 ปีที่แล้ว +133

    Mad mouse skills, I was impressed by your cleat writing on paint with a mouse lol

    • @r3dsh1ft3d
      @r3dsh1ft3d 10 ปีที่แล้ว +60

      He has a stylus.......

    • @whysomad6338
      @whysomad6338 9 ปีที่แล้ว +43

      Russell Barnes Sssshhhh! Don't ruin the magic!

    • @jksbottommole8463
      @jksbottommole8463 7 ปีที่แล้ว +1

      what stylus?

    • @freakinfolks457
      @freakinfolks457 7 ปีที่แล้ว

      syberspy9

    • @vardaan5947
      @vardaan5947 4 ปีที่แล้ว

      @@jksbottommole8463 it's a kind of pen, used to write on computers or other screens which supports it.

  • @Clasq_GOD
    @Clasq_GOD 9 ปีที่แล้ว +10

    Just good to understand a normal function of the heart. Better than any teacher at schools.

  • @lowlalve43
    @lowlalve43 10 ปีที่แล้ว +57

    .... i feel so smart after watching these vids

  • @beenmissing
    @beenmissing 11 ปีที่แล้ว +2

    i was giving up on my revision until i stumbled upon this. thank you for simplifying things down. you're an inspiration. please continue to upload more videos!

  • @karensimmons4560
    @karensimmons4560 4 ปีที่แล้ว +1

    Terrific teacher!!!!!!!!!!!!

  • @danielcontreras3956
    @danielcontreras3956 10 ปีที่แล้ว +1

    Love the video! Thankfully the voice wasn't monotonous and he gave a clear explanation.

  • @rivet3300
    @rivet3300 10 ปีที่แล้ว +11

    I absolutely love this video- you explain these concepts quite well; that makes sense why systole is 1/3 cardiac cycle and diastole is 2/3 cardiac cycle :)))

  • @LiaraJane
    @LiaraJane 11 ปีที่แล้ว +1

    your use of arrows and changing colors makes this SOOOO OOOOOOO wonderful! thank you

  • @wassimarnaout
    @wassimarnaout 9 ปีที่แล้ว +7

    Thank you very much you are doing a wonderful job, way better than books, it's not boring and it goes straight to the head. Keep it up you're great!

  • @meltlee9907
    @meltlee9907 3 ปีที่แล้ว +1

    The fact tt this vid helps students after 9 yrs...

  • @Magiccat179
    @Magiccat179 11 ปีที่แล้ว

    First of all your voice is so clear, your english is fantastic! Second of all, if I could have two first of alls, I would also say that you explain so clearly what my Professor has managed to jumble up. You are now my mentor.....like it or not : )

  • @ceedee4681
    @ceedee4681 7 ปีที่แล้ว +1

    It's a great video ! It all makes sense now. Thanks a lot for the video.

  • @vickyeastwood9368
    @vickyeastwood9368 11 ปีที่แล้ว

    Thank you Khan after all these years Ive found out exactly where systole and dyastole really sit. Thanks your voice is very clear, your logic is easy to understand. Well done from NZ

  • @TranscendingFate1
    @TranscendingFate1 11 ปีที่แล้ว

    Khan academy has helped me tremendously through all of my medical prerequisites!! I am almost finished Anatomy and Physiology 2 and I'm number 1 in my class. I could not have done it without Khan. Thank you!

    • @munaaliii
      @munaaliii 3 ปีที่แล้ว

      can I get some help from ya? help an aspiring doctor out here

  • @kathleencraigie4703
    @kathleencraigie4703 2 ปีที่แล้ว +1

    Something I heard on another video the other day....on how to remember the different heart valves...
    All Patients Take Medicine... A, P, T, M.... Aortic, Pulmonary, Tricuspid, Mitral ... :-)

  • @Powerfulmantha
    @Powerfulmantha 9 ปีที่แล้ว +10

    I just want to say thank you so much for all of your wonderful videos!! I am currently a nursing student in my last quarter of school and have utilized many of your videos throughout my program! They have helped me immensely! You guys are amazing and I have and will continue to recommend your videos to many of the first and second year students that are in our program!!

  • @PasscodeAdvance
    @PasscodeAdvance 11 ปีที่แล้ว +2

    To me,Heart sounds go like PumPum PumPum PumPum

  • @farhanaislam3387
    @farhanaislam3387 9 ปีที่แล้ว +1

    awesome vedio....thank you so much

  • @loridelatorre2307
    @loridelatorre2307 11 ปีที่แล้ว

    AMAZING INSTRUCTORS!!!! I Love Them! I Love they way they explain the material, how knowledgeable, calm and clear they are! I have listened to other Khan videos for other subjects and I have never been disappointed. THANKS A MILLION!!!!!.

  • @srivastavamajjari
    @srivastavamajjari 7 ปีที่แล้ว +1

    Really it is explained in a very lucid manner..

  • @stacyanderson3191
    @stacyanderson3191 7 ปีที่แล้ว +1

    Great video!!

  • @ramezberkdar7188
    @ramezberkdar7188 9 ปีที่แล้ว +5

    شكرا جزيلا لك على الشرح الرائع والبسيط

  • @rimeln6443
    @rimeln6443 9 ปีที่แล้ว +4

    thanks for the great video! you never fail to make me understand something

  • @gabyvarela9557
    @gabyvarela9557 7 ปีที่แล้ว +1

    great video! thank you!

  • @zurireyes1334
    @zurireyes1334 12 ปีที่แล้ว

    thank u so much for posting these videos theyre awesome to help me in ANP2. u explain this so good thank u soo soo much!!!!

  • @saitejaagepally3647
    @saitejaagepally3647 7 ปีที่แล้ว +1

    You are better than my biology teacher.Thank you so much for uploading this video!!!!!!!!!!!!!!!

  • @cirenamrac1618
    @cirenamrac1618 3 ปีที่แล้ว

    Amazingly clear videos. Need more views!

  • @lottieblunden
    @lottieblunden 10 ปีที่แล้ว

    What a clear and brilliant video- I finally understand!

  • @glitchedcrit3848
    @glitchedcrit3848 8 ปีที่แล้ว +54

    Thanks for these videos, helping so much more than lectures haha

    • @aanshusingh8618
      @aanshusingh8618 7 ปีที่แล้ว +1

      Madeleine's Paige hey you are the one who plays bioshock

    • @shuvam712
      @shuvam712 4 ปีที่แล้ว +1

      You are very nice

  • @azninvasion1016
    @azninvasion1016 9 ปีที่แล้ว +19

    Please teach at my school, you explain it so perfectly thank you, thank you, thank you!

    • @hckynrscnd8916
      @hckynrscnd8916 7 ปีที่แล้ว

      n't you wish he was your prof?!

  • @rebeccagonzalez2407
    @rebeccagonzalez2407 3 ปีที่แล้ว

    Thank you so much! Great video Rishi!

  • @cemol4us
    @cemol4us 11 ปีที่แล้ว

    outstanding! outsanding!!

  • @CaptainVelveeta
    @CaptainVelveeta 5 ปีที่แล้ว

    Super simple...super informative...thanks

  • @ahmans1
    @ahmans1 10 ปีที่แล้ว +4

    thank you that was very useful

  • @bensdemosongs
    @bensdemosongs 11 ปีที่แล้ว

    I like that last part- really put things in context

  • @_shumayala_khan_
    @_shumayala_khan_ 2 ปีที่แล้ว

    This was really very helpful ❤

  • @satarupaganguly8553
    @satarupaganguly8553 7 ปีที่แล้ว +1

    Very absolute 👌

  • @tonydebaka3967
    @tonydebaka3967 ปีที่แล้ว

    wow....the vid is more than 10 years old but it is the best explanation on you tube..job extremely well done. thanks a million

  • @dianaalfonso6746
    @dianaalfonso6746 11 ปีที่แล้ว

    WOWOWOWOOW you are a wonderful instructor. Thanks

  • @curtpiazza1688
    @curtpiazza1688 ปีที่แล้ว

    Cool video! Great info! ❤

  • @shazminkamali7495
    @shazminkamali7495 7 ปีที่แล้ว +1

    We learnt this today. And i didnt know half the things she was talking about. This video gets a 👍👍👍 for making me understand!

  • @KayliaQuenga
    @KayliaQuenga 10 ปีที่แล้ว

    This helps unbelievably!!!!

  • @pipiwaem34
    @pipiwaem34 9 ปีที่แล้ว

    very clear! thanks very much

  • @Osmani-96
    @Osmani-96 5 ปีที่แล้ว +1

    Amazing explanation. thanks my favoirate teacher

  • @thetukibird1500
    @thetukibird1500 3 ปีที่แล้ว

    Whenever I dont understand what my lecturer is talking about I watch your videos instead. They are so much more helpful! Thank you so much.

  • @Noemda
    @Noemda 7 ปีที่แล้ว +2

    Thank you, you did an amazing job teaching the heart sounds. Also, you made it fun.

  • @mohsenalemad
    @mohsenalemad 11 ปีที่แล้ว

    Very useful ...Thanks

  • @duramatersoul
    @duramatersoul 8 ปีที่แล้ว

    Another fantastic easy to understand video

  • @nellyhoffman6194
    @nellyhoffman6194 8 ปีที่แล้ว +1

    Amazing !

  • @kari8208
    @kari8208 9 ปีที่แล้ว +4

    very clear ,well explained video. helped me so much for m nursing classes. thank you and keep up the brilliant work:)p.s. recommending it to all my classmates

  • @mairajamil2788
    @mairajamil2788 7 ปีที่แล้ว

    fabulous you make this so easy

  • @JustTayo
    @JustTayo 3 ปีที่แล้ว

    This Man is God sent. Thank You!

  • @awdalysaleh4045
    @awdalysaleh4045 10 ปีที่แล้ว +4

    Thank you very much for your effort .

  • @johnalbanese2750
    @johnalbanese2750 11 ปีที่แล้ว

    Outstanding! Thanks!

  • @JaslynneWilliams
    @JaslynneWilliams ปีที่แล้ว

    BLESS YOU FOR THIS!!!

  • @dentaldowntime
    @dentaldowntime 11 ปีที่แล้ว

    Actually it's the noise of the valves snapping shut. The blood tries to go back the way it came and forces the valves shut creating the distinct noise. If you're hearing the turbulence in the blood, it's most likely a heart murmur. You can check it out at wikipedia.

  • @maria01412
    @maria01412 8 ปีที่แล้ว

    a huge thumbs up..thanks a lot!!

  • @maheenashfaq
    @maheenashfaq 11 ปีที่แล้ว

    you are just amazing. GOD bless you my friend!

  • @hosearowe8345
    @hosearowe8345 3 ปีที่แล้ว

    So very very clearly taught ! Not too fast and you deliberately take time to explain
    Easier to follow

  • @diplomat2623
    @diplomat2623 10 ปีที่แล้ว

    Awesome video. Very helpful.

  • @painesville100
    @painesville100 10 ปีที่แล้ว +32

    Shared with my Anatomy/Physiology class (8th period- Cleveland Metro Schools: Lincoln-West International School.

    • @khanacademymedicine
      @khanacademymedicine  10 ปีที่แล้ว +10

      Mark Julius Thanks for sharing. Are there other videos/tutorials you'd like to see on Khan Academy medicine that would be useful for you or your students?

    • @leaholson76
      @leaholson76 9 ปีที่แล้ว +25

      +khanacademymedicine
      Can you make a video of Systole and Diastole broken down into depth, please? It's one of the most complicated concepts to grasp and this video only touches the surface... For all A&P classes we need to fully understand the valves, sounds, pressures, and volumes and waves of an ECG for each (systole and diastole). Making a video incorporating all of theses would be incredibly helpful to a lot of people...

    • @MudderFukker-m6g
      @MudderFukker-m6g 8 ปีที่แล้ว +18

      Blood flow Acronyms I made up to remember them....
      Valves: "To Perform My All"
      ========
      Tricuspid, Pulmonary, Mitral, Aortic
      T(o)
      P(erform)
      M(y)
      A(ll)
      ======
      Chamber flow: "Real Americans drive RV's from Los Angeles to Las Vegas"
      RA->RV > [Lungs]> LA->LV-> [Aorta]
      R(eal) A(mericans) [drive]
      RV's [from]
      L(os) A(ngeles) [to]
      L(as) V(egas)
      ========
      Hope that helps anyone.

    • @angel-ik2mc
      @angel-ik2mc 7 ปีที่แล้ว +1

      +Mudder Fukker Thank you! I'm from Philippines :)

    • @aninditasahaxxx5438
      @aninditasahaxxx5438 4 ปีที่แล้ว +1

      @@MudderFukker-m6g why Fukker??

  • @finenita
    @finenita 9 ปีที่แล้ว +2

    This is the explanation in the world :D Best teacher ever!

  • @neelkamalgupta8530
    @neelkamalgupta8530 4 ปีที่แล้ว

    Very impressive video to understand.You just saved my life

  • @amirgiubran5963
    @amirgiubran5963 11 ปีที่แล้ว

    thanks man. this Video is Fantastic !!

  • @mariek6262
    @mariek6262 4 ปีที่แล้ว

    awesome explanation!!

  • @asifraj321
    @asifraj321 ปีที่แล้ว

    Very nice and clear explanation.

  • @sloane290
    @sloane290 8 ปีที่แล้ว

    Very nicely explained. Kudos.

  • @padaisehikalh9773
    @padaisehikalh9773 6 ปีที่แล้ว

    It is a great video. outstanding👍👍👍👍👍

  • @emmacassinelli3886
    @emmacassinelli3886 7 ปีที่แล้ว +1

    I love this channel, it's so helpful!

  • @medicalscience1528
    @medicalscience1528 2 ปีที่แล้ว

    Thank you so much. It cleared my concept .

  • @twistyacorda5904
    @twistyacorda5904 8 ปีที่แล้ว +1

    This explanation is more clear than my teacher. Thanks for the Video. Hoping for more videos about Science

  • @anitabharadia8679
    @anitabharadia8679 5 ปีที่แล้ว +1

    It's very specific...The teaching is very high standard and also very clear as I mentioned. :)

  • @Torque_Haven
    @Torque_Haven 11 ปีที่แล้ว +7

    Thank you good sir.

  • @lovetheecassis
    @lovetheecassis 11 ปีที่แล้ว

    Your videos are great and making my life so much easier for a&p 2. A video about a EKG (or ECG) graph would be so helpful!!!

  • @jyotichauhan9364
    @jyotichauhan9364 8 ปีที่แล้ว

    Yeah! It helps me alot. Thankyou.

  • @dancenutcracker7502
    @dancenutcracker7502 10 ปีที่แล้ว +7

    Wow this makes so much more sense now! Thank you! Great video!

  • @lavishkumar3595
    @lavishkumar3595 9 ปีที่แล้ว

    awesome explanation ............'

  • @Mariabarlow3
    @Mariabarlow3 8 ปีที่แล้ว

    You are a great at what you do. Thank you, thank you, thank you!

  • @megglide
    @megglide 11 ปีที่แล้ว

    Wow! this explains the heart sounds way better than my text! thank you.

  • @Aschref
    @Aschref 7 ปีที่แล้ว +3

    I'm so grateful to you colleague! Thank you for the perfect work! please keep making more medically educative videos =)

  • @malphop
    @malphop 10 ปีที่แล้ว

    You really good with these tutorials!!!

  • @gRekou21
    @gRekou21 11 ปีที่แล้ว

    Thank you so much!! Really helpful!!!

  • @Truth-will-prevail
    @Truth-will-prevail 7 ปีที่แล้ว +1

    thanks

  • @orlandogonzalez638
    @orlandogonzalez638 7 ปีที่แล้ว +18

    Start from 0:00 put at half speed (0.5) and enjoy, sounds like a drunk guy teaching anatomy.

  • @camillemarie5966
    @camillemarie5966 3 ปีที่แล้ว

    Such clear comprehensive explanations. You are a wonderful teacher!!!!!

  • @RedwanaBari
    @RedwanaBari 11 ปีที่แล้ว

    Sooo awsome explanation !!!! I'm sooo grateful to KA !! :)

  • @B3bita1215
    @B3bita1215 9 ปีที่แล้ว +1

    Perfect explanation :)
    Thanks!

  • @justlisten8705
    @justlisten8705 4 ปีที่แล้ว +1

    I can say nothing coz i m speechless but i can only say admirable and fabulous teaching

  • @tendol3599
    @tendol3599 7 ปีที่แล้ว

    Thanks for making it so clear

  • @ryno1222
    @ryno1222 12 ปีที่แล้ว

    Seriously fantastic. This Khan Academy is absolutely inspiring.

  • @moniquegevorkian8897
    @moniquegevorkian8897 8 ปีที่แล้ว

    very helpful thank you

  • @AndreaCsaszar
    @AndreaCsaszar ปีที่แล้ว

    Thank you so much for helping me to understand systole and diastole!

  • @am1ar35
    @am1ar35 11 ปีที่แล้ว +10

    "Lub Dub, Lub Dub".
    The sound of the living!

  • @inshalfatima7859
    @inshalfatima7859 4 ปีที่แล้ว

    You are amazing!!!

  • @taybakhan1367
    @taybakhan1367 6 ปีที่แล้ว

    Best vedio so far about this topic. THANK YOU