Fetal circulation right before birth | Circulatory system physiology | NCLEX-RN

Fetal circulation right before birth | Circulatory system physiology | NCLEX-RN | Khan Academy

Рет қаралды 1,721,583

11 жыл бұрын

Watch how the blood flows through the fetal circulation and compare it to what happens in the baby's body. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.
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Пікірлер: 454

@khanacademymedicine 11 жыл бұрын

I'm really glad that you have found this video useful. I'm going to keep making these, so keep watching and share with your friends. =)

@pisces31493 10 жыл бұрын

The smile shows that there are two umbilical arteries and one umbilical vein. Two eyes-arteries, smile-vein. Great video!

@mariafaltass1308 4 жыл бұрын

Genius! Thank you! :D

@docfromthesouthbeifong3142 3 жыл бұрын

Or AVA. 2 arteries, 1 vein

@harendrasolanki4147 3 жыл бұрын

Ofcource

@kofisarpong4505 3 жыл бұрын

You must be a doctor now😅🔥

@emilhavranek9256 10 жыл бұрын

You´re doing a great job, I really appreciate your videos! However I have to point out one big MISTAKE in this video with the blood mixing. I checked out some anatomy and physiology books and this is how it works: So as you said from umbilical vein one part of the blood goes to liver and the other part goes through ductus venosus straight to Inferior Vena Cava (IVC). Here the oxygenated blood from umbilical vein mixes with deoxygenated blood in IVC and in the result the blood is now 67% oxygenated. Now we get to the important part. IVC a SVC (superior vena cava) meet in the right atrium. However the blood does NOT mix in the right atrium (or it does just a little bit) and this is because of the laminar flow of blood (both in IVC and SVC). So from IVC the blood (67% oxygenated) goes through foramen ovale straight to left atrium and eventually to left ventricle and aorta ...and from SVC the blood (deoxygenated) goes to right ventricle, than to pulmonary artery and eventually most of it goes through ductus arteriosus to DESCENDING part of aorta, where it mixes with the 67% oxygenated blood creating 60% oxygenated blood But why is this so important? Brain requires greater amount of oxygen for proper development. And the arteries supplying brain and upper limbs come out of aortic arch before the 67% oxygenated blood (from IVC) mixes in descending part of aorta with deoxygenated blood (from SVC) making the 60% oxygenated blood which goes to lower limbs. I have tried my best to explain it, but if anyone didn´t understand and is interested in this please leave a comment

@almcc6416 10 жыл бұрын

This is correct. The most oxygenated blood flows preferentially from IVC across the RA via FO to LA and onwards to the brain. less oxygenated blood from SVC flows preferentially to RV -> PA -> DA -> Aorta (beyond the right brachiocephalic artery and left common carotid supply to the brain) and then either to lower limbs or back to the placenta.

@xx9aznfaith9xx 10 жыл бұрын

Great remark Emil Havranek, just becareful because you said ..."from SVC the blood (deoxygenated) goes to right ventricle, than to pulmonary artery and eventually most of it goes through ductus venosus to DESCENDING part of aorta, where it mixes" but it's ductus arteriosus, not venosus! I'm sure you just had a little slip! I just wanted to point it out for anyone else reading your otherwise very clear explanation :)

@emilhavranek9256 9 жыл бұрын

xx9aznfaith9xx Thank you! You´re right, I´ve corrected it and now it should be OK :)

@noornana4190 9 жыл бұрын

Emil Havranek thank you .... you are amazing

@TieuBaoTu 7 жыл бұрын

+Emil Havranek thank you, you're amazing!!

@astrydphoebeward 10 жыл бұрын

This is the best explanation I have ever heard! In Anatomy, we never even discussed the fact about pressure and oxygen! Well done!

@pete4791 3 жыл бұрын

Thank you for breaking this material down into simple, understandable pieces. Always in awe of how amazing everything works in A&P!

@nameinaframeindy 11 жыл бұрын

I dont even pay attention in Anatomy class anymore. I just come home and watch one of his videos, and I get nothing but 100% on my test. He just makes everything so understandable. Thanks Kahn.

@MandyGR 10 жыл бұрын

Dude YOU ARE the maaaaan!!!!!! Thank you!!!!

@emilyparks8635 4 жыл бұрын

I went to like this video, but I guess I had already liked it a couple years ago. This is gold! I love that you explained the resistance; it made everything come together for me :)

@eva4basketball 10 жыл бұрын

This is simply amazing!!! You make things so simple....studying for the MCAT...thank you!!!

@lilanbolt6972 Жыл бұрын

I was few days to my nclex exam but couldn’t study anything because of my busy schedule but thank God I linked up with Mr Riq God bless you more cuz you made it possible for me to pass at once even without preparation

@rekieshawhite1722 Жыл бұрын

Nclex exam is really difficult and frustrating, can't believe I failed again after studying so hard

@alexjandravanessa985 Жыл бұрын

I just have 2 weeks to go please what do I do

@ahmedattia6191 Жыл бұрын

@Eliana Masih Am sorry for what some people are passing through, I also passed through the difficulties just be patient and keep studying

@sherilee1705 Жыл бұрын

@Eliana Masih Try to get yourself good help , for me I didn’t study a bit , mr riq worked for me 💯

@dinaissa1129 Жыл бұрын

Wow just heard someone mentioned mr riq , I thought I was the only one that this man saved from the monster called nclex

@mastura8789 11 жыл бұрын

You make Cardiovascular Biology a lot more easy to understand with your clear drawings and explaining every step of the way! thank you! :)

@zeeshanmansuri3714 10 жыл бұрын

Hats off Rishi...U rock...

@jaysfirepit 10 жыл бұрын

Just wanted to thank you for the 10 minute condensed lecture. Learned everything I needed to.

@christineclarke117 8 жыл бұрын

I just love your videos! You always explain things perfectly. Thank you!

@lindsaybrooks7904 10 жыл бұрын

I wish I could like this video more than once!!! Thank you for making this so easy to understand! You're awesome

@kareemthabet1594 3 жыл бұрын

A very warm Thank you from a very overwhelmed first year medical student here

@kayhanson1624 5 жыл бұрын

This is exactly what I am looking for. Great job! Thank you!

@mohamedbellahcene8775 9 жыл бұрын

Im doing first year medicine and GOD bless you, you are better than all of my lectures you should have universities and colleges begging you to teach for them :(

@chancepark6253 9 жыл бұрын

Mohamed Bellahcene you are living the dream! study hard :)

@krombopulosmichael6445 7 жыл бұрын

How's med school coming? I'm a Vet, it's so hard not to watch these vidios

@matinannaji602 5 жыл бұрын

Mohamed Bellahcene lol I have to learn this as well but for high school biology.

@derealeristo 4 ай бұрын

Did you graduate? 🔥

@haleyruggles3919 7 жыл бұрын

Amazing video thank you! Khan Academy never fails to simplify!

@YolandaPap 11 жыл бұрын

Love it !!! You're the TEACHER I wish I had...

@shalomchipepera6733 3 жыл бұрын

Excellent!! a whole chapter explaining in 11 mins I love it!!👏🏽👏🏽

@krombopulosmichael6445 7 жыл бұрын

I'm a vet, it's amazing how simple yet clever mammals truly work are. Well done with this it's amazing.

@jbill2986 10 жыл бұрын

Dear God in Heaven, Thank you for this! Unbelievably helpful!

@mailife4367 5 жыл бұрын

That was beautiful such a thorough explanation, hitting most of not all the important points I needed to know.

@Dekthagr8 11 жыл бұрын

Thank you so much, currently studying for the MCAT. This helped A LOT!!

@elektica 11 жыл бұрын

I can't thank you enough! it's easy and fun to learn watching your videos. My very confusing textbook reading suddenly becomes crystal clear.

@sarahmorgan5443 11 жыл бұрын

This is amazing--so clear and well-explained. Thank you!!

@yashmunjwani8908 3 жыл бұрын

I was so tensed about this topic as I was confused about it but you explained it very amazingly.... thank you

@kiddiekids 11 жыл бұрын

OMG LOVE YOUR EXPLAINATION! My lecturer's only mentioned briefly and expect us to know most of the stuff. Thank goodness I found this before my finals. :P

@rbdsmadmaster 5 жыл бұрын

this is the best explanatory video I've ever watch about the subject. Thank you.

@amethyst4444 8 жыл бұрын

AMAZING EXPLANATION!!! Thank you!!!!

@stephanieadams8886 11 жыл бұрын

this was amazing. thank you! My text book was confusing but this really helped me see how this works.

@Kira13865 10 жыл бұрын

Dude you kick any professor's ass anytime!!

@felixetcetera 9 жыл бұрын

Absolutely brilliant! Thanks for making fetal circulation student-friendly :)

@yummycandy22 7 жыл бұрын

Couldn't have understood this better from reading several times and getting frustrated. Thankyou so much for making everything so easy. I don't think I'll ever miss out on the details of circulation as explained in this video.

@psyc0l0gee 7 жыл бұрын

teacher explained this twice and it took an hour... confused the heck out of everyone.... you do it in 12 minutes.... and aha!!....Got it! Thanks!

@veryfieddoctor7450 6 жыл бұрын

Tania Kirchner its now teachers fault when you are not giving the lecture proper attention??

@alyssamayo7316 6 жыл бұрын

Students can learn in different ways, maybe it's easier for students to learn visually with drawings and audio that makes sense with someone who takes the time to really explain.

@dzire1 11 жыл бұрын

I read my book several times to try to understand this and I couldn't. I watched your video only twice and feel like I mastered it and it was FREE! Thank you so much!!!!

@krisztinapal9052 6 жыл бұрын

Amazing video, you made the concepts so clear. Thank you!

@ConorMckenzie 10 жыл бұрын

This was quality thank you

@uriahfingerhut1408 9 жыл бұрын

great tutorial, better then any lecture and the comments are great to, thanks everyone please keep doing this awsome important job!

@joshuacash1757 9 жыл бұрын

Thank you so much. Your videos are getting me through anesthesia school! Cant thank you enough.

@sidewa1ks 11 жыл бұрын

Thank you so much for posting videos like this. They are so helpful and the way you explain things is very clear!

@ilikefunnyvideos 11 жыл бұрын

Pure Perfection. Appreciate your work. Thank you.

@sticks13131 10 жыл бұрын

you are unbelievably amazing. thx!!

@Redr0ses101 11 жыл бұрын

So helpful!! I'm a nursing student and I was so confused about this in class. It makes so much sense now!!

@rozachikhi5950 8 жыл бұрын

SUPER clear, thank you so much !

@milenaorellana4205 9 жыл бұрын

Great explanation! thank you so much!

@bla69 11 жыл бұрын

I love that I can come to KZfaq and clarify things that aren't super clear in class. Thank you.

@mesunshine3446 3 жыл бұрын

Your video is SO great, really. I mean, the picture of this beautiful simple drawing, but even more is it the first time in a few years that i got the point with the pressure and the foramen ovale. Cool, thank you!

@Sapphire093 10 жыл бұрын

Could not have explained this in a better way. Thank you!!!!!

@rpb2976 9 жыл бұрын

Thank you so much for doing this!!!

@linkh1435 4 жыл бұрын

Thank you Khan Academy. You've helped me a lot with Physics, Chemistry and Biology.

@jeampierrecruz 10 жыл бұрын

Phenomenal explanation of the fetal circulation, he makes it easy to understand and grasp. Thanks for the awesome video.

@ChrisHeightsTV 8 жыл бұрын

Wow; this really helped me! Thank you. 🔥🔥🙏🙏

@shorifdsa 8 жыл бұрын

one of the best way of explanation.... easily memorable ........

@nuritkopolovichhadad9623 9 жыл бұрын

thank you.that show was amazing. tried to understand it for so long, now i finaly undesdand it!!

@rim1577 11 жыл бұрын

You explain everything so clearly!

@myjunihond 9 жыл бұрын

Thank you so much... It was very helpful in understanding how the fetal circulation works. Keep up the good work.

@wonjungchon 10 жыл бұрын

wow this is amazing. thank you so much!

@RazanneT 11 жыл бұрын

That was such a great explanation! Very simple yet knowledgable! Thank you :)

@user-is3mr7hy2d 3 жыл бұрын

너무 도움이 됐어요! :) thank you so much

@ItsOverNEINTHOUSAND 5 жыл бұрын

Bless this is so much more simple and easier to grasp compared to lecture and the book

@Zooter123 10 жыл бұрын

THANK YOU UR AMAZING!! u just saved me hours of studying!

@n.ischiadicus1412 7 жыл бұрын

Thanks for this great video! And also big thanks for the subtitles!

@tseringchoezom9803 Жыл бұрын

Loved the explanation! Such a good refresher. Thank you!

@skomura 11 жыл бұрын

thank you!! I wasn't so sure what exactly I needed to know about ductus venosus. I don't know how many As I owe you, please keep great works coming!

@kitina11454 11 жыл бұрын

Very helpful in my review for the MCAT. Thanks!

@11SaRaH06 11 жыл бұрын

thank you so much for posting this...it all makes so much more sense!

@drinksoymilk007 11 жыл бұрын

Thank you so much! Life saver for the MCAT!

@SuperEiram25 10 жыл бұрын

now i understand it so much... thank you!

@user-wu9mb6fv4u 5 ай бұрын

wow this lecturer is the best. thank you for making me understand.

@stayingup2late2 11 жыл бұрын

You make it so clear and interesting. Another nursing student thanks you.

@kamalpreetkaur757 8 жыл бұрын

explains well. Thanks you so much!!

@tadyMichal 11 жыл бұрын

Very nice, interesting and helpful! Thank you so much for that!!!

@carissawilkins3881 9 жыл бұрын

You are helping me so much in medical school!

@drfeezakhan8221 7 жыл бұрын

Khan Ur lectures I mean all of the amazing... thnq you so so much... Allan bless you.

@1207klp 11 жыл бұрын

Very easy to watch and understand. Thank you!

@natashas8971 10 жыл бұрын

You rock. This helps a lot. Thanks!!

@cwebb9723 10 жыл бұрын

Great video! Thank you for your time and work!

@premkoti8476 9 жыл бұрын

Excellent vedio....I really appreciate it...thanku so much

@katkar6520 6 жыл бұрын

Díky moc

@bonniekazior3380 11 жыл бұрын

Excellent video. You make fetal circulation so easy to comprehend. The detail is incredible....Thank you

@magsauced 10 жыл бұрын

great graphics, great video. thank you for posting!

@gyal123 11 жыл бұрын

Your explanation and visuals are better then the book I'm reading, thank you!

@greenyellowmanilla 9 жыл бұрын

AMAZING! Thank you I have been struggling to understand this for so long. Continue the great work.

@suneetasingh01 3 жыл бұрын

Amazing, you have explained it so well👍

@user-lu5il8fi9f 7 жыл бұрын

Perfect video , thanks!

@ka6091 5 жыл бұрын

thank you for the explanation!

@MrsDrGG 11 жыл бұрын

good job!!!!! excellent!!! Thank you so much!

@saraghafoorian7827 10 жыл бұрын

you are amazing !!! :)

@alef_19 9 жыл бұрын

i always found teh fetal circulations in parts, this is the BEST explanation . thank you so much

@hiliof123 3 жыл бұрын

Finally understood!! Thank you

@jamskim 11 жыл бұрын

I'm impressed. Exelent illucidation

@sabithasachu5585 4 жыл бұрын

Thank you so much for your clear explanation

@irshalkhan04 11 жыл бұрын

subhanallah and thanks..i enjoyed watching this and really helped me to understand what actuality of theory written on many books..

@zettedl1708 11 жыл бұрын

you make it soooo easy to understand... thanks for uploading!!!!

@ruhidyusifov2372 8 жыл бұрын

Thank u this helped for my exam!! Great job

@TikeshaTay 11 жыл бұрын

This video is great! You are a wealth of knowledge!

@komalraj540 7 жыл бұрын

thanx!it's so easy to understand!!

@michelledoreen 11 жыл бұрын

Thank you. This video is great. You're a gifted teacher like Sal.

@altair2594 7 жыл бұрын

pure quality, thank you sir