Electrical system of the heart | Circulatory system physiology | NCLEX-RN | Khan Academy

See where the pacemaker cells start the electrical wave of depolarization, and how it gets all the way to the ventricles of the heart. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.
Watch the next lesson: www.khanacademy.org/test-prep...
Missed the previous lesson? www.khanacademy.org/test-prep...
NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at creativecommons.org/licenses/b....
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s NCLEX-RN channel: / @khanacademynclex-rn7898
Subscribe to Khan Academy: kzread.info_...

Пікірлер: 281

  • @Moonchild98
    @Moonchild987 жыл бұрын

    legit just make khan university

  • @zeruapod2897

    @zeruapod2897

    3 жыл бұрын

    @@thiagofinley5940 Nobody cares. And you don't have a girlfriend.

  • @SpandexSuperstarr

    @SpandexSuperstarr

    3 жыл бұрын

    Agreed. He explains things so well

  • @reddypoguraju3265

    @reddypoguraju3265

    2 жыл бұрын

    Spotted another moonchild❤️Mono🥺

  • @ShortenMonteCristo
    @ShortenMonteCristo9 жыл бұрын

    *doesn't understand professor's 50 minute lecture* *watches 10 minute khanacademy video and understands it thoroughly*

  • @annabasil9639

    @annabasil9639

    8 жыл бұрын

    +Adam Baum Lol same :)

  • @nicholasbowden6073

    @nicholasbowden6073

    6 жыл бұрын

    Bbb

  • @marvelhasiholan5495

    @marvelhasiholan5495

    6 жыл бұрын

    Maybe you don't pay attention in class

  • @zbrown02

    @zbrown02

    5 жыл бұрын

    Adam Baum because the education you pay for is a joke. Most people on the internet explain things better then professors to.

  • @pigeonlove

    @pigeonlove

    5 жыл бұрын

    Second time around is invariably easier than the first, doh

  • @costasenglezopoulos4029
    @costasenglezopoulos402910 жыл бұрын

    Knowing something and being able to make others understand this is something totally different ... And you my friend, whoever you are, have a talent in doing this ... Everything in your narration is perfect: from your voice to your drawing and making others remember the knowlege included in your video without having to study it again. So I hope that u are some kind of professor or teacher in a university because you have a talent in that. Friendly greetings from Greece.

  • @shardsandthecrew3235

    @shardsandthecrew3235

    6 жыл бұрын

    Costas Englezopoulos u r very wise

  • @shardsandthecrew3235

    @shardsandthecrew3235

    6 жыл бұрын

    Costas Englezopoulos u r yery wise

  • @mindsoulpower

    @mindsoulpower

    4 жыл бұрын

    THIS GUY HAS NO FUCKING IDEA HOW TO EXPLAIN..

  • @yasmine4754

    @yasmine4754

    4 жыл бұрын

    Costas Englezopoulos, so true!

  • @jmj7568

    @jmj7568

    2 жыл бұрын

    Fully agree

  • @FistpumpingToMozart
    @FistpumpingToMozart9 жыл бұрын

    There is literally nobody who doesn't love these lectures

  • @Roosyer

    @Roosyer

    8 жыл бұрын

    +FistpumpingToMozart 31 people don't

  • @FistpumpingToMozart

    @FistpumpingToMozart

    8 жыл бұрын

    +Corvux IX they don't like hearts they must be vampires

  • @Roosyer

    @Roosyer

    8 жыл бұрын

    FistpumpingToMozart That was a quick reply :)

  • @annabasil9639

    @annabasil9639

    8 жыл бұрын

    +FistpumpingToMozart ikr :)

  • @UnbreakablePickaxe

    @UnbreakablePickaxe

    6 жыл бұрын

    YES

  • @annabasil9639
    @annabasil96398 жыл бұрын

    *Watches 10 minute video by UCSD, falls asleep, gets an F on finals* *Watches 30 minute Khanacademymedicine video, stays awake and gets an A+ on Biology exams* THANK YOU KHAN ACADEMY!

  • @hujanrindu2634

    @hujanrindu2634

    7 жыл бұрын

    lying

  • @benjaminb1319

    @benjaminb1319

    5 жыл бұрын

    @@hujanrindu2634 do you know what a joke is?

  • @hujanrindu2634

    @hujanrindu2634

    5 жыл бұрын

    @@benjaminb1319 chill bro. this comment was like 2 years ago . hahaahah

  • @colorkouture_llc

    @colorkouture_llc

    2 жыл бұрын

    Woooowwwwwww my mind is blowwwnnn

  • @stylewithgen
    @stylewithgen5 жыл бұрын

    You deserve a Nobel prize for how Khan Academy has innovated the educational system. I am about to go to grad school and I have been watching your videos since I was a freshman in my undergrad years. You rock!

  • @jacobb7310
    @jacobb73107 жыл бұрын

    you explained it ten minutes what my professor couldn't in 50. thanks.

  • @ladynottingham89
    @ladynottingham899 жыл бұрын

    My professor just started to mention terms like depolarization, repolarization, and action potential without explaining what those meant. WTH?! Thank you for simplifying the concept behind the terms. Most of us learning this are undergrads LoL maybe some professors forget this and start throwing medical jargon at us like we already know what they mean.

  • @MonkeyDLuffy-xr4fl

    @MonkeyDLuffy-xr4fl

    7 жыл бұрын

    Wut???? We learnt these terms in high school, and my university doesn't accept students who are unfamiliar with such basic terms. Interesting

  • @ladynottingham89

    @ladynottingham89

    7 жыл бұрын

    Monkey D. Luffy Well, I am an "non-traditional" student aka I took a long break before I started college. I was 23 when I started after leaving active duty.

  • @hyperionparthalan

    @hyperionparthalan

    4 жыл бұрын

    Really the first professor to explain action potential properly was in my first year of med school. Actually a lot of topics my undergrad just told us to accept w/o explanation were covered cause I ACTUALLY HAVE TO UNDERSTAND THIS TO KNOW IT. cough still annoyed at undergrad.

  • @briang8663
    @briang86636 жыл бұрын

    Watching this as a preface to my cardiopulmonary block of med school. :D Good old khanacademy. Best free MCAT prep out there.

  • @amandanowacki4371
    @amandanowacki43716 жыл бұрын

    I have watched probably 10 different videos on this and after this one, I finally get it. You're amazing. Thanks for all you do!!!

  • @FUS1ONGAMES
    @FUS1ONGAMES10 жыл бұрын

    There are so many classes I wouldn't have passed if it weren't for Sal. He got me through 2 math classes, chemistry and now physiology. Can't thank him enough!

  • @madcamp44
    @madcamp4410 жыл бұрын

    I am extremely impressed. You have an amazing talent for teaching!

  • @LatinoSoulja1
    @LatinoSoulja18 жыл бұрын

    I wish my anatomy and physiology teacher taught like you make it so easy to understand!

  • @nellyhoffman6194

    @nellyhoffman6194

    8 жыл бұрын

    +Jay13 no they make you pay to learn and then they dont teach shit

  • @bitemyshinymetalass7393
    @bitemyshinymetalass73938 жыл бұрын

    by the machine god... why do i even attend to the lectures in my school when there are better materials out here..

  • @MonkeyDLuffy-xr4fl

    @MonkeyDLuffy-xr4fl

    7 жыл бұрын

    I actually don't regularly attend lectures for this very reason:D Unless the lecturer is brilliant

  • @missiletoe99

    @missiletoe99

    7 жыл бұрын

    Praise the Omnissiah!

  • @UnbreakablePickaxe

    @UnbreakablePickaxe

    6 жыл бұрын

    YES

  • @adelrabie5117
    @adelrabie51178 жыл бұрын

    amazing fast easy lectures that makes you understand everything with pure simplicity WOW!!!!!

  • @briteeyesnsmile
    @briteeyesnsmile8 жыл бұрын

    I show these videos to my Surgical Technology students every time I teach them the heart. I love these! Thank you so much!

  • @Cass_i
    @Cass_i4 жыл бұрын

    Usually, Khan lectures are a little drawn out and the person just mumbles and takes a while to get to the point. This was perfect for me. Right into it, no delays and beautifully explained. Loved it

  • @flowingglowingone
    @flowingglowingone8 жыл бұрын

    This video is soooo helpful just as the others I"ve watched by you! Thank you for your time and effort in this presentation. I now understand!

  • @HarpreetK94
    @HarpreetK949 жыл бұрын

    Struggled with this for soo long! Thank you for the video!! Dont know why I wasted a hour looking at the book when I could've just watched this video. Thanks again! :)

  • @danstan930813
    @danstan93081310 жыл бұрын

    Salute. Beautiful explanation and I can easily understand the Heart and how it functions now. Keep uploading brilliant videos like these.

  • @texas_medic2003
    @texas_medic20035 жыл бұрын

    In school to become and EMT and reading the section about depolarization and repolarization was like trying to learn a foreign language. No reference pictures or anything visual for me to connect the dots. Thanks for the explanation and pulling back the clouds of confusion for me. It all makes sense now!!

  • @cristinabeltranagost5399
    @cristinabeltranagost53999 жыл бұрын

    Fantastic. I've never imagine it could be so easy to understand !!

  • @edgarramos2455
    @edgarramos24555 жыл бұрын

    Your voice is soothing, you got that voice tonality down. Also you explained so easily compared to my textbook. Great job!

  • @LetsgetphysicalAg
    @LetsgetphysicalAg10 жыл бұрын

    WOW!! That is one hell of a GREAT explanation! You did wonderful! Thank you

  • @rebeccajones4963
    @rebeccajones49639 жыл бұрын

    I sincerely hope you teach..somewhere...this is fabulous!

  • @koruptxshun
    @koruptxshun10 жыл бұрын

    Hahahahah. You're not the only one brother. It's gentle and relaxing. Perfect for learning!

  • @brittanymichelle7402
    @brittanymichelle74022 жыл бұрын

    I watched this video a few times. You did an excellent job! Thank you.

  • @chrissyr0702
    @chrissyr07029 жыл бұрын

    Excellent video and flawless explanation! Thanks for sharing!

  • @kevalparikh92
    @kevalparikh926 жыл бұрын

    How is that possible that every single thing in the body is perfectly structured! Btw Great video. You are a born teacher rishi.

  • @zbrown02

    @zbrown02

    5 жыл бұрын

    Keval Parikh god duh

  • @aishwaryab6736
    @aishwaryab6736 Жыл бұрын

    Just wow, very clearly explained

  • @josiahprecious968
    @josiahprecious96811 ай бұрын

    Wow! What a systematic explanation. Nice accent!

  • @dodia4843
    @dodia48439 жыл бұрын

    thank you a lot its very helpful video , keep up you have a talent you can draw and you have a skill of explanation I really like it .

  • @anhnhat2844
    @anhnhat28446 жыл бұрын

    I wish I had Khan Academy for every subject in my university :( Thank you very much Sir

  • @nadia41683
    @nadia4168311 жыл бұрын

    Hi Rishi, I just want to thank you for all your great videos. I am starting Nursing school, and I needed to review some of my A & P. I am a total visual learner so your videos make perfect sense. Could you do a video on EKG my book is confusing me.

  • @pippinfan1
    @pippinfan110 жыл бұрын

    That was a better explanation than my text book. Thank you!

  • @rajendrakumarmakwana8941
    @rajendrakumarmakwana89414 жыл бұрын

    Khan you're perfect teacher👩‍🏫‍

  • @NiceGuyJase
    @NiceGuyJase11 жыл бұрын

    This is a great presentation. I love the analogy of highways too, thank you.

  • @noellikins1224
    @noellikins12249 жыл бұрын

    OMG! You're videos helped me so much for my IB Biology Exam 😍👌🏻

  • @mollyengelbert939
    @mollyengelbert9399 жыл бұрын

    This was the best step-by-step of the conduction system! It really made it clear for me!

  • @swangle
    @swangle10 жыл бұрын

    AWESOME VIDEO. you explained in 10 mi s what my professor couldn't in 1 hour. BRAVO!!

  • @topiasleino8345
    @topiasleino83458 жыл бұрын

    You sir deserve a cookie

  • @raggedysmile
    @raggedysmile6 жыл бұрын

    I wish our anatomy teacher would teach directly from videos like this one!

  • @mikegarbett4800
    @mikegarbett48008 жыл бұрын

    You Sir. Are a gifted teacher!

  • @annabasil9639

    @annabasil9639

    8 жыл бұрын

    +Mike Garbett Word.

  • @kirstylomas8587
    @kirstylomas858710 жыл бұрын

    this video is exactly what I needed, so easy to understand . Thanks

  • @TeyTeyCroco
    @TeyTeyCroco11 жыл бұрын

    Thank you! this is actually amazing! it helps me alot!

  • @anacedeno3562
    @anacedeno356210 жыл бұрын

    Wonderful Tutorial ! Thanks so much!!!!!!

  • @kathleenm4731
    @kathleenm47317 жыл бұрын

    So helpful. Thank you!

  • @studentnursesaima5836
    @studentnursesaima58363 жыл бұрын

    I am a UK Nurse student and this is so simple!!

  • @sheikhzeenish1764
    @sheikhzeenish17649 жыл бұрын

    Mashaa Allah brother! Really helpful!

  • @mrx3430
    @mrx34304 жыл бұрын

    great !!! now I understand everything !!!

  • @OElliinos
    @OElliinos6 жыл бұрын

    Amazing! Thank you !!

  • @Zhengotsang
    @Zhengotsang11 жыл бұрын

    Thank you for your crystal clear explanation. Definitely looking forward to learn more from you.

  • @Erica-bh6ss
    @Erica-bh6ss2 жыл бұрын

    wow. really good job of explaining!

  • @eval3509
    @eval3509 Жыл бұрын

    I read my textbook on this and didn't get it but now I understand it more after watching this thank u

  • @rajatshukla2422
    @rajatshukla2422 Жыл бұрын

    Perfect short video , helped a lot before exam

  • @lulita1234
    @lulita123410 жыл бұрын

    is there a video on the correlation of the waves of an ECG with mechanical events in the atria and ventricles?

  • @93denisechavez
    @93denisechavez10 жыл бұрын

    YOU'RE AWESOME! THANK YOU !!! YOU'RE THE BEST!! :)

  • @zainabbaqer4713
    @zainabbaqer47137 жыл бұрын

    the best ever, thank you.

  • @huffyng3416
    @huffyng34167 жыл бұрын

    Thank you so much.... You are a blessing...!!!!!

  • @albertocegueda7484
    @albertocegueda74844 жыл бұрын

    This is a great video!! The animation makes it extremely easy to understand

  • @roseleelauper1193
    @roseleelauper11934 жыл бұрын

    excellent instruction, thank you very much!!

  • @jamespatterson923
    @jamespatterson92311 жыл бұрын

    Such a don! Helps so much with my revision!

  • @earo1122
    @earo112210 жыл бұрын

    great video! thank you so much!

  • @pinglu8377
    @pinglu83778 жыл бұрын

    perfect, so helpful!!!

  • @ChrisHeightsTV
    @ChrisHeightsTV9 жыл бұрын

    Excellent work! Thank you very much!

  • @P1nkmunkyRB
    @P1nkmunkyRB5 жыл бұрын

    very clear - good diagrams

  • @laibagul4056
    @laibagul40562 жыл бұрын

    Very easy way to learn...Thank hu so much..❤

  • @charlesxix
    @charlesxix Жыл бұрын

    Thanks, really clear and informative. Just been informed I have a Right bundle branch block having just had an ECG. Now waiting for an appointment with a cardiologist.😒

  • @ninjachrish
    @ninjachrish Жыл бұрын

    studying for my nursing exam, this is amazing. thank u.

  • @kvsm23vs24
    @kvsm23vs248 жыл бұрын

    dude you're awesome!

  • @stanleycates1972
    @stanleycates19726 жыл бұрын

    Wonderful clear - Khan Academy is great

  • @robberttettero6986
    @robberttettero698610 жыл бұрын

    It's very easy to understand, I'll check more videos!

  • @Ry4nism
    @Ry4nism10 жыл бұрын

    Thanks,it's easy to understand

  • @dickenyurrbot6929
    @dickenyurrbot692910 жыл бұрын

    this is gold

  • @Kahli155
    @Kahli1554 жыл бұрын

    i love you down to your voice. been watching for years now. You have helped me to ace many exams! did i mention i love you voice! lol

  • @alwathabaldaraji3423
    @alwathabaldaraji3423 Жыл бұрын

    great discussion Thank you very much ❤🙏

  • @esrakarakaya4845
    @esrakarakaya48454 жыл бұрын

    it is fantastic.I love ur summary lectures. Thank u Khan academy.

  • @Aschref
    @Aschref6 жыл бұрын

    Albert Einstein once said: "if you can't explain it simply you don't understand it well enough" Thank you for the brief explanation professor :)

  • @neelamm16
    @neelamm164 жыл бұрын

    BEST VIDEO EVER. THANK YOU!!!

  • @adamhallsworth4023
    @adamhallsworth402310 жыл бұрын

    Awesome video, very helpful!

  • @sonyabloor9058
    @sonyabloor90589 жыл бұрын

    Extremely well explained! I'm your new fan! Thank you!!

  • @dr.mariammorsy6582
    @dr.mariammorsy65822 жыл бұрын

    You’re a life- saver Thank you ❤️

  • @jaccbien
    @jaccbien10 жыл бұрын

    i wish this is how it was discussed in school. the complexity of this mechanism coupled with my teacher's almost indecipherable way of speaking is too much to really comprehend this matter

  • @nightelf7701
    @nightelf770110 жыл бұрын

    Awesome video, tyvm for making it!!

  • @stingable
    @stingable5 жыл бұрын

    Awesome Explanation

  • @angusobrien6024
    @angusobrien60247 жыл бұрын

    very easy to understand thank you so much - lectures and powerpoint slides from uni just weren't making it clear - THANK YOU

  • @vijayalakshmi76sakthivel69
    @vijayalakshmi76sakthivel694 жыл бұрын

    Helped me a lot Thank you

  • @chenafmohamedamine1305
    @chenafmohamedamine13059 жыл бұрын

    simple explain,,thank you

  • @luckydesilva6733
    @luckydesilva67334 жыл бұрын

    Thank you for well explained video.. Respect

  • @tgkzo2132
    @tgkzo213211 жыл бұрын

    A very good video, very precise and easy to understand. Thanks a mil

  • @RamesesTarantino
    @RamesesTarantino3 жыл бұрын

    Awesome video!

  • @jennifermoreiradinzey3552
    @jennifermoreiradinzey35528 жыл бұрын

    Thank you for these videos!

  • @adaokeke8156
    @adaokeke81566 жыл бұрын

    Thank you so much!! ur video has really helped me!

  • @rising_waves
    @rising_waves Жыл бұрын

    I love the voice and presentation manner. ThNk you! I however cannot find answer to my question anywhere. What forces nodes to produce the e electric impulses? Where does this charge come from? What exactly starts it?

  • @ayeshaansari3518
    @ayeshaansari35183 жыл бұрын

    Thank you for this!!

  • @graciemartinez17
    @graciemartinez178 жыл бұрын

    Thanks this video helped a lot!

  • @Holly-days
    @Holly-days5 жыл бұрын

    Very nicely done.

  • @MegaCcharles
    @MegaCcharles10 жыл бұрын

    Great presentation!

  • @CliffNotesAnesthesia
    @CliffNotesAnesthesia10 жыл бұрын

    Very good presentation.

  • @WcJ31
    @WcJ313 жыл бұрын

    2 hours worth of lecture in class 10 mins here and understand it pretty easily