Foramen ovale and ductus arteriosus | Circulatory system physiology | NCLEX-RN | Khan Academy
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- เผยแพร่เมื่อ 4 ธ.ค. 2012
- Watch how the fetal heart allows blood to simply bypass the lungs altogether using the Foramen Ovale and the Ductus Arteriosus! Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.
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Wow! I have never had anything explained this clearly. Wow! From the way you started and connected everything, it’s just perfect. I have read this many years before and I thought I understood it or maybe I did before but it always slips away. There is no way this is ever going to slip away. Thanks man. Thank you
10 years later and this video still MADE my day!! thank you so much for the interesting explanation
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It's written in every Embryology book, that's not a big deal to understand this. Ductus arteriosus Botalli: Anastomosis between Lung truncus and Aorta. Foramen ovale: Hole between left and right Atrium. Both are physiological and close during brith normally (Foramen ovale closes due to increase of pressure in small circulation system, both septums (primum and secundum) are compressed to each other and close the Foramen ovale). Sometimes the obliteration and closure does not happen. Sometimes these Shunts are the only thing, that sustain the life of the newborn. It depends of the defect combinations. BTW: Before the Foramen ovale is created, the blood flows throw the Ostium primum and secundum to the other Atrium.
I m just a month away from studying mbbs, and these type of videos not only helping me to clear the basic things but really increasing my love towards medicine... Thank u
what a good video and explanation! I had some questions raised yesterday and now it's all clear! thank you!!
That was such a great explanation and drawing! thank you!
genius! the only way I was abe to understand the foramen ovale!
thank you so much--i'm a nursing student and this has helped me understand the basics of fetal circulation as it relates to the pathophysiology of congenital heart defects. love it!
Your videos, explanations, drawings are detailed and extremely helpful. Keep up the good work and thank you!
Before I read my pediatric nursing book over the fetal heart I had to find a visual of how it worked. Your video is perfect. Thanks!!!!!!
your teaching is just like an excellent chapeau!
sharing this with all my fellow nursing students! Your 15 minute lecture was great! totally understood it better than in my sit in class.
I was luckily watched this video the night before my license exam. And for sure found the question related there. What a blessing. Thank you so much!
Bravo! Amazing work, illustration and didactic way of explaining this topic.
This is really useful and helps make paediatric cardiology much simpler (I'm using your video as revision) Thank you!
fantastic video! im not a med student (if all goes well i should be a pharmacy student this time next year) but starting watching this randomly and was blown away by how much i had learnt in a short period of time. i haven't been this genuinely intrigued or exited to learn more about subject simply out of interest in such a long time, so thank you very much for you fantastic video and please continue to do what you doing! :)
I teach nursing and tutor many, many students for the NCLEX-RN and NCLEX-PN. Khan Academy is indispensable resource to me and my students. Thank you!
very clear, well explained! thank you so much
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I am a student midwife and you are my saviour! Such a clear description and well drawn video. You got skillz. Thank you.
Love love love your explanation, visual and neatness! Gracias!!! : )
YOU’RE AMAZING! THANK YOU 😊
I WISHED THIS GUY WAS MY TEACHER DURING MY NURSING SCHOOL YEARS .....U ARE A SPECTACULAR TEACHER!
This was really helpful :) thank you
That was amazing. Very easy to understand and interesting. Awesome!
thank you so much! now I understad it.
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Thank you so much. I thought I knew this, but now I fully understand it.
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love it, great and simple explanation. Keep up the good work guys:-)
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Lo máximo!!
Thanks, you might just have saved my embryology test tomorrow :D
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What a fantastic video-thanks a lot :)
I had a stroke in 2008, consequently a PFO closure surgery. I was 39 years old.
Thanks a lot!! I love the way you teach.
Excellent explanation, very neat , Blessings
Thank you for great explanation!
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Amazing video on fetal circulation!
Excellent presentation and illustration!
amazing, thank you
Thank you so much, this helped me a lot to cram for exam this weekend :-)
Thanks to you I can still attend my final even I jumped the lecture about fetal circulation…..
Amazing explanation.......really helpful
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EXCELLENT!
Thank u so much these videos help me a lot in my studies :) thank you a lot
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Insane!
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Thanku!!!
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Thank u rishi desai mam
Awesome clear explanation
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Is this Micheal Linares ?!? Sounds JUST like him!!!!
great!
Thank you so much! Your videos have saved me constantly throughout PA school
Jamie Hodes My name is Rishi Desai and I work at Khan Academy. If you're willing to share a bit about your experience as a PA student, please send us your email address so we can reach out to you. Thanks in advance!
Clear concept
Best online Med teacher ever!
Nice one!!
Superb explanation. Thank you😍
Thanks so much!
Where does the blood from the left atrium go? Does it continue to the LV and then into the aorta?
thanks a lot it solved my confusions 😁
Pure excellence
This video saved my time ..and me
excellent
Watching this for paramedic school
thanks a lot
Wonderful video! You are an excellent teacher.
thank you
I like your presentation verymuch, I don"t need to read any confussing book more...
hello I got question in exam. "Explain the fetal circulation and its shunts." Is Foramen ovale right left shunt or left right shunt and is Ductus Arteriosus also right left shunt?