Baby circulation right after birth | Circulatory system physiology | NCLEX-RN | Khan Academy

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  • Опубликовано: 12 дек 2012
  • Watch how the blood flows through the baby's circulation and compare it to what happens in the fetus. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.
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Комментарии • 176

  • @cairennbinder2233
    @cairennbinder2233 8 лет назад +97

    I love this video. "So, this arteriole is excited, its never really had a chance to be dilated before..."
    \

  • @jessicasnowden2155
    @jessicasnowden2155 8 лет назад +52

    Thank you!! 3 years in nursing school and nobody has been able to explain this as clearly as you in your video. You made fetal circulation feel easy!

    • @whozaskin3639
      @whozaskin3639 6 месяцев назад

      Feel easy......a reasonable compromise would be to have a complete nervous system link between all babies undergoing it, and all those involved in doing it.

  • @KellSpeekz
    @KellSpeekz 8 лет назад +33

    your videos will be the reason I ace this exam confidently!!!

  • @erwinalber8273
    @erwinalber8273 10 лет назад +25

    Thanks for the information! The video however skips the most important bit of information parents need, namely that at the moment of birth a third to a half of the baby's blood is in the placenta, and that the CORD MUST NOT BE CLAMPED until this blood has been transferred to the baby and the cord stops pulsating and goes flat and white. It's in fact best to not clamp the cord until the placenta has been delivered. Once the blood has been transferred the placenta goes flat and is more easily expelled than a placenta which is full of blood due to premature cord clamping which deprives the baby of its full volume of blood, leaving the baby weakened and anemic,

    • @ongeschikttheebladje
      @ongeschikttheebladje 9 лет назад +11

      You don't have to wait until de placenta is born. After 3 or 4 minutes enough blood has transfer to the baby and the cords stops pulsating. The placenta mostly is born after 15-20 minutes(without Oxytocin). And most parents doesn't like a placenta hanging on there new born.
      This type of information is not relative, for this video. It's about adaptations and changes after birth and not about pathological diseases.

    • @fallonnicole7736
      @fallonnicole7736 8 лет назад +4

      +amylie Jansen I appreciated Erwin's contribution to the conversation.

  • @shelbielong2251
    @shelbielong2251 6 лет назад

    I watched both the before and after videos and I am so thankful you took time to make them! When I was reading about it in the book I was completely lost and decided to give RUclips a try and came along your videos! The way you explained it was so comprehensible! THANK YOU THANK YOU THANK YOU!!

  • @lovejoy41275
    @lovejoy41275 11 лет назад +23

    I have been watching his videos since I started college in 2010. I am now 3 months away from graduating as an RN (registered nurse) and I am still using his videos. He is absolutely amazing!!!!!!. I always recommend his videos to everyone. Thank you so much for your fabulous videos, you have no idea how much they have helped me, exspecially through all my Biology's.

  • @gsx6757
    @gsx6757 3 года назад +3

    Insanely simple explanation, wish all lecturers were like you! thanks!!!

  • @robinaesimmons8120
    @robinaesimmons8120 6 лет назад

    This video was fantastic! I've read the chapter 3 times and it finally clicked when you explained it in this video! Thank you!

  • @sweetydeh
    @sweetydeh 9 лет назад +1

    I've been so lost with this fetal circulation before and after birth! Thank God, I stumbled onto this video, and the light bulb in my little brain is ON baby!!! thanks Khan!!!

  • @aabhaanekar9990
    @aabhaanekar9990 7 лет назад +1

    Simplified and creative demonstration of all topics! Excellent videos! Very much recommended for understanding fundamental concepts! 👌👌👏👏

  • @Merryyy203
    @Merryyy203 7 лет назад

    This whole change is crazy and I didn't understand it when it was explained in class.
    Thank you!!!

  • @kennymokuolu863
    @kennymokuolu863 10 лет назад +2

    Thanks for the video, great stuff, and thanks to Erwin for bringing that important point, I did not know that. You guys rock! Thanks.

  • @adenacanton6503
    @adenacanton6503 9 лет назад

    This is an incredible video! He has a way of simplifying material and making it MAKE SENSE!

  • @dvuk3368
    @dvuk3368 10 лет назад +2

    Genius ! Finally clear. You helped me a lot.
    Thank you :))

  • @juliettye25
    @juliettye25 9 лет назад

    Thanks for the great video. Totally helped me as for my Reproductive Bio course. Am currently a Medical Sciences student. Cheers!

  • @dk28355
    @dk28355 7 лет назад

    Fantastic explanation of these astounding physiological events!

  • @Mel-xy7jo
    @Mel-xy7jo 9 лет назад +1

    I love your videos! Brilliant for revision!

  • @kristylee8091
    @kristylee8091 9 лет назад +1

    awsome,and very clear. thank you

  • @shreyasichakraborty
    @shreyasichakraborty Год назад

    So clearly explained. I bet I won't ever forget this...

  • @robporter4585
    @robporter4585 9 лет назад

    Brilliant and so helpful for revision time!

  • @zeeshanmansuri3714
    @zeeshanmansuri3714 10 лет назад +1

    The best explanation ever....

  • @posled
    @posled 8 лет назад +4

    I like his voice...music to my ear

  • @irisaguilar-rivera3574
    @irisaguilar-rivera3574 8 лет назад

    omg thank you! so much better than reading it over and over.

  • @jp32123
    @jp32123 2 года назад

    i have hated on many people trying to explain this, they sound bored, unpassionate, and they simply just suck. Dr. Rishi, u are the exact opposite of that... thank u so much! u rock! ♥

  • @DRLUCKSANAREE168
    @DRLUCKSANAREE168 9 лет назад

    AWESOME !!!! Thanks for creating these kind of things

  • @vinca1460
    @vinca1460 6 лет назад

    its really amazing, all these changes are just so cool
    thank you for your videos, really enjoying it

  • @mihika6730
    @mihika6730 2 года назад

    Amazing content. You explained so clearly what my text should’ve explained to me in 5 readings 😅

  • @oxlopez
    @oxlopez 11 лет назад

    Another awesome instructional video!! Keep'em comin'!

  • @studentnursesaima5836
    @studentnursesaima5836 3 года назад +1

    I was wondering how it all closes off, this explains just that

  • @KayVgKatTV
    @KayVgKatTV 2 года назад

    Always helpful to watch this video. Thanks for showing and explaining!

  • @tracyzr11
    @tracyzr11 8 месяцев назад +1

    Thank you so much. You have a way of teaching about you that is interesting and engaging. I found myself so interested that I couldn't look away. Been trying to learn this for a while now and it never made since. Please continue to make videos.

    • @whozaskin3639
      @whozaskin3639 6 месяцев назад

      a reasonable compromise would be to have a complete nervous system link between all babies undergoing it, and all those involved in doing it.

  • @leannanunez3250
    @leannanunez3250 10 лет назад

    I love you! This is an amazing video. Simple way to explain complex processes.

  • @asmasiddiqui2215
    @asmasiddiqui2215 8 лет назад +1

    excellent explanation. thank you.

  • @janeeyreroo
    @janeeyreroo 7 лет назад

    GOD BLESS YOU SIR ! THANK YOU SOOO MUCH

  • @flair5179
    @flair5179 7 лет назад

    thank you for explaining this.

  • @kaylaashleymaa6125
    @kaylaashleymaa6125 7 лет назад

    omg this is wonderful! thank you soooo much

  • @metashambles6707
    @metashambles6707 7 лет назад +1

    Please please please dear god do a video on development of the heart. Preferably before my undergrad finished in 2 years. Would really appreciate a good vid on that.

  • @catn9608
    @catn9608 4 года назад +1

    ur video was used in my australian uni's online learning activities section :) u're doing an awesome work! thx for ur informative video, perfect for visual learners like me

    • @ashwembomlanita1744
      @ashwembomlanita1744 3 года назад

      Hi there I’m so happy I finally passed my nclex after failing for 3 times thanks to a friend who recommended me to Mr StephensNegh. You can WhatsApp him on +1 (413) 634-6055 or email him on vasconegh@gmail.com. This man is so so amazing he’s got a couple of good questions and answers for your test be it Rn or LPN. Guess you wouldn’t want to be left out

  • @christencolon4237
    @christencolon4237 5 лет назад

    this is amazing. thank you!!!!!!!!

  • @chhivly43
    @chhivly43 11 лет назад

    You got the best lecture. Thx so much. That's gonna help with my exam

  • @elenavaldivielso5961
    @elenavaldivielso5961 3 года назад +1

    Hi! Thanks for your videos, they are amazing!
    I have a question regarding fetal circulation. In this video, you explain that high oxygen levels, altogether with low levels of prostaglandins, make the smooth muscle, in the ductus arteriosus, contract. Hence, I understand that oxygen acts as a vasoconstrictor. How does hypoxic pulmonary vasoconstriction, then, works? Shouldn't low oxygen levels cause vasodilation? Thank you!

  • @felicityescovedo837
    @felicityescovedo837 11 лет назад

    love this video(: thank you!

  • @NENE279
    @NENE279 7 лет назад

    thank you. thank you so much. thank you.

  • @grndhg86d
    @grndhg86d 2 года назад

    Would you do a video showing how premature umbilical clamping causes infantile coarctation of the aorta please? I can't seem to find a good illustration for how this happens.

  • @misbahsalaria4655
    @misbahsalaria4655 9 лет назад

    lovely! thins made damn easy

  • @marianardrivera7293
    @marianardrivera7293 9 лет назад

    ME ENCANTAN TODOS LO VÍDEOS QUE HACEN ! ME MOTIVAN Y ME AYUDAN MUCHO, MUCHAS GRACIAS!

    • @edithr6024
      @edithr6024 7 лет назад

      Mariana RD Rivera a mi también!

  • @mkrug001
    @mkrug001 11 лет назад

    I'VE GOT THIS NOW! This info will be no problem on my exam. Many thanks.

  • @meryemazdoud7518
    @meryemazdoud7518 7 лет назад +2

    Amazing job , very well simply explained and schematized, really thank you a lot ! keep on what you re doing, Much respect !

  • @maryrosec.balomit8595
    @maryrosec.balomit8595 2 года назад

    ahh thank you for this! u made it easier to understand.

  • @irinagelimson1364
    @irinagelimson1364 6 лет назад

    Awesome! Thanks a lot!

  • @90chathurika90
    @90chathurika90 9 лет назад

    this video is so good and really helpful. The way your presenting it is amazing. thank you so much.... :)

  • @abdurrahmanbin-nuhaid968
    @abdurrahmanbin-nuhaid968 7 лет назад +1

    You are awesome !!

  • @zuberkhan3873
    @zuberkhan3873 6 лет назад

    Really very nice video it made the topic easy

  • @carissawilkins3881
    @carissawilkins3881 9 лет назад

    This is so amazingly helpful. THANK YOU!

  • @shridharhodlur170
    @shridharhodlur170 10 лет назад

    Awasome!!!!!!!!!! Thank u sir

  • @faithjohnson5587
    @faithjohnson5587 Год назад

    Very helpful, thank you!

  • @chethan4298
    @chethan4298 5 лет назад

    Thank u rishi desai mam

  • @bobbyschilderwerken5345
    @bobbyschilderwerken5345 3 года назад

    the best explaination

  • @Beikabeikamura
    @Beikabeikamura 6 лет назад

    Nicely done. Thanks.

  • @annibrahim8770
    @annibrahim8770 6 лет назад

    Thank you for yr great effort

  • @joyferguson3210
    @joyferguson3210 11 лет назад

    Great video! Thanks!

  • @mustafajabir9717
    @mustafajabir9717 10 лет назад

    AMAZING VIDEO, REALLY HELPFUL, THANKS ALOT "_"

  • @amberwol9330
    @amberwol9330 9 лет назад

    LOL.... excited arterioles :')
    thanks for the video!!!!!

  • @moomooli
    @moomooli 9 лет назад

    thank you!

  • @yemeniproud3496
    @yemeniproud3496 11 лет назад

    I wish my teacher is teaching like you, i would get an A in all my classes.

  • @sa159753sa
    @sa159753sa 9 лет назад

    thank youuuuuuuuu!!!!!!!!!!!!

  • @misswozniak
    @misswozniak 11 лет назад

    amazing! thanks

  • @velvetkyss8826
    @velvetkyss8826 7 лет назад

    youu sirr.. thank you so muchhh😄😄

  • @elnora1469
    @elnora1469 3 года назад

    great videos, thank you!

  • @jennykoehler3984
    @jennykoehler3984 8 лет назад

    That was sooo cool! Wow!

  • @emmanuelkasheto8078
    @emmanuelkasheto8078 9 лет назад

    waoh...nice video thank you...

  • @loutrymouad4506
    @loutrymouad4506 6 лет назад

    Great explanation

  • @sadiahashim5008
    @sadiahashim5008 6 лет назад

    Well explained!

  • @bluediamond4880
    @bluediamond4880 9 лет назад

    thank you soooo much

  • @whats_a___taylor510
    @whats_a___taylor510 11 лет назад +1

    One thing I would like to mention about the Foramen Ovale is that it may not close completely directly after birth. In fact, many infants will continue to have what will sound like a heart murmur upon auscultation, for a couple weeks after delivery until that Foramen Ovale completely fuses closed. This is normal and most doctors will be able to differentiate between a heart defect and this slow closing of the Foramen Ovale.

  • @j.s.6654
    @j.s.6654 10 лет назад

    great vid! thanks!

  • @drvinson8947
    @drvinson8947 3 года назад +1

    Nice explanation. 👍🏼

  • @minimeow09able
    @minimeow09able 11 лет назад

    ah-maaazing.. :)), thank u soo much

  • @ahmadghawanmeh6490
    @ahmadghawanmeh6490 9 лет назад

    marvellous !

  • @redfridgevalor685
    @redfridgevalor685 10 месяцев назад

    I always wondered how people understood how all this works, like the inner workings of the babeh's heart. Did they throw in the baby into an Xray or something? Or did they do other stuff to see how this works. Most especially about the circulation of the fetus.

  • @mawiakhammash9190
    @mawiakhammash9190 6 лет назад

    Super nice video. Though I wonder why does increase in oxygen levels make the pulmonary arterioles dilate while it makes ducts arteriosus and umbilical arteries constrict?

  • @bohnohboh676
    @bohnohboh676 9 лет назад +7

    Great video. I have a question: when the ductus arteriosus and the umbilical arteries constrict due to high pO2 and low prostaglandin levels, what eventually happens to them? Do they remain there as a cylindrically oriented cell mass, or do they apoptose?

    • @vladdanila5726
      @vladdanila5726 9 лет назад +11

      They become ligaments connecting different structures around them.
      I.E. the Ductus Arteriosus becomes the Arterial Ligament, with no function other than connecting the aortic arch with the pulmonary trunk.

    • @fallonnicole7736
      @fallonnicole7736 8 лет назад

      +George Mastorakos Thank you for asking this! I was really wondering as well. I'm no med student but I get what a ligament is.

  • @nelo4real
    @nelo4real 8 лет назад +4

    Beautifully and wonderfully made!!!

  • @mluna4245
    @mluna4245 9 лет назад +10

    with the body's own production of wharton's Jelly, I really dont see the need for us to cut the cord or clamp it before this process happens on its own! more reason to delay cord clamp!

    • @Night93
      @Night93 8 лет назад +1

      +M Luna Yeah but the wharton's jelly doesn't 'happen on its own' it only starts contracting when exposed to a lowered temperature. That's not going to happen if the cord is not clamped/cut....

    • @cairennbinder2233
      @cairennbinder2233 8 лет назад +1

      +Night93 ?? It is exposed to a lower temperature when the baby comes out...

    • @Night93
      @Night93 8 лет назад +2

      It doesn't exactly work like that. Straight away after birth the cord pulsates (it is still attached to the placenta which is in the mother, placenta tends to be birthed later) which continues to provide essential oxygen, nutrients and delivers blood back to baby. This transfer of blood is called placental transfusion.
      Placental transfusion is the system that provides the baby with red blood cells, stem cells, immune cells and blood volume. Delayed cord clamping allows time for the placental transfusion, ensuring safe oxygen levels and blood volume in the baby.
      If the whartons jelly began contracting and clotting to the lowered temperature of air when the baby comes out this placental transfusion wouldn't happen and there would be no point of delayed cord clamping at all.

    • @cairennbinder2233
      @cairennbinder2233 8 лет назад

      +Night93 yes, I know all that - but above you disagreed with delayed cord clamping, or so it appears

    • @Night93
      @Night93 8 лет назад +1

      No if you reread what I said I am all for delayed cord clamping. My initial comment was about the contraction of Wharton's Jelly..

  • @whozaskin3639
    @whozaskin3639 6 месяцев назад

    a reasonable compromise would be to have a complete nervous system link between all babies undergoing it, and all those involved in doing it.

  • @ajonie.a6986
    @ajonie.a6986 3 года назад

    This is too good!

  • @juliemariano8434
    @juliemariano8434 5 лет назад

    Good explanation!

  • @SuperXueyin
    @SuperXueyin 6 лет назад

    best explaination

  • @adiiian
    @adiiian 3 года назад

    Thank you for real🥺❤️

  • @xueqing8050
    @xueqing8050 3 года назад

    How about the blood vessels in the liver? How to circulation gets back to the liver?

  • @aqibsyed8198
    @aqibsyed8198 7 лет назад

    excellent

  • @arminap.2487
    @arminap.2487 5 лет назад

    Great video thank you! I'm still confused about the fluid in the alveoli. Does it get pushed out into the blood stream or the interstitial fluid?

    • @benlevy4673
      @benlevy4673 4 года назад

      It gets squeezed out of the lungs as the baby goes through the small birth canal

  • @Yungazndude
    @Yungazndude 9 лет назад

    Thanks

  • @onwaradumnil4672
    @onwaradumnil4672 Год назад

    Thank you.😊

  • @Flower-wh4oi
    @Flower-wh4oi Год назад

    Hey thanks for sharing

  • @Amjadgh92
    @Amjadgh92 6 лет назад

    Useful video.

  • @yumnamohd647
    @yumnamohd647 6 лет назад

    wonder wonder no no no one can reach your work hard

  • @kcmastertech
    @kcmastertech 10 лет назад

    thank you

  • @truthseeker2206
    @truthseeker2206 9 лет назад

    superb video

  • @GiftedBirth
    @GiftedBirth 10 лет назад +4

    ?? because performed immediately at birth it is a surgical intervention, shown to reduce blood volume, produce bradycardia, risk ID anaemia..besides, it would be more interesting to see an accurate presentation of transition from placental to pulmonary respiration that isn't just 'clamp'.

    • @grndhg86d
      @grndhg86d 2 года назад

      I agree, why not study and focus on the authentic primarily then look at the counterfeit and any variations between the two could expose possible differences in the values???