Umbilical vessels and the ductus venosus | Circulatory system physiology | NCLEX-RN | Khan Academy

[@RAZZp00]

This video kicks butt. 12:32 of this w graphics or sitting through a 2 hr lecture with a 55 year old uninterested and tenured diabetic & making no learning progress.

[@javadshirzad7]

WoW, I couldn't understand the "ductus venosus" and now I completely understand it and even more information, thanks very much to you ❤❤❤🎉

[@GeorgeUCSC]

This was a truly helpful lesson. I'm not sure if you're aware of this, but it is next to impossible to find a clear, accurate illustration/animation alongside an instruction as to how the Ductus Venousus works. All I EVER heard was "it makes blood skip the liver". Now I know How, Where, and Why it does that. Thank you!

[@divacassandra1]

These videos from Rishi are an excellent addition to KA.

[@semanavidi8694]

The absolute best.

[@dr.omayyahdarodeh6907]

A very nice and comprehensive demonstration . Thank you !

[@csabanemeth]

Really great video! Thank you!

[@jtkhs]

very nice video , so easy to understand for me. thank you.

[@myprettygirl91]

oh lord jesus thank you for this, saved my life!!

[@LoEvie39]

Your videos have helped me so much with my A&P study. Thank you so much. Keep them coming!

[@studentnursesaima5836]

Same!

[@rabbittv3900]

Beautifully explained

[@ploy040937]

thank you so much !!!

[@gennetrussom3225]

thank you for explaining clearly

[@theaniqa99]

wonderful presentation! i wanted to add one key point that i feel u may have missed. fetal shunts are present also because the mother is doing the metabolism for the child, trough the placenta, hence the lungs and liver functions are not needed. i watched 2 of ur videos about this topic and didnt hear it mentioned, but i see there are a couple more so i dont know if u mention them there. keep up the great work!

[@AB-jx2we]

every video is phenomenal, my professor doesn't even explain 1/10 as good as you. Thank you so much!

[@iffatsiddiqui1926]

Excellent explanation, thanks.

[@montrealmusiclover45]

LOVE THIS! Finally understanding.... Yeah!

[@zenab311]

Thanks very great &simple discussion👍

[@victoriaw3058]

Extremely helpful. Thank you so much!!!

[@roufaidaable]

very interesting video ..thanks a lot

[@ahmedmustafa1178]

V. V. V. V. Good

[@amandalevick8645]

You are awesome, your videos rock. Thank you.

[@heer03]

Great video, thank you soo much, but I do have a question for you. Does mom and fetus blood ever get mixed up in this whole process at all?

[@edniebrisson1059]

great video! you explained this so well

[@teejay7171]

I'm finally gonna pass my exam now :') thank you

[@chyeamooya]

bless your heart for this informative video!!!!!

[@ibraheemabbass8783]

thanks for your vedio

[@khanacademymedicine]

Thanks. I'm glad that it's useful and enjoyable to watch! =)

[@mamalovedoula]

These are so informative but , how does the placenta anchor , does it imbed into the basil plate ?

[@amourjoy8]

THANK YOU SOOO much! I finally get it!

[@aisiabates4575]

Thank you for such an amazing explanation!

[@nursefarrah3848]

amazing video

[@FortisAquila14]

u are great teacher thank u so much it was so easy and fun to understand ! :D :)

[@Picknikly]

these videos are sooo great!!!

[@asayel12]

thank youuuuuuuuu, so much

[@MrLennoncito]

This video it´s wonderful. thank you so mucho, and carry on till forever :)

[@blertadeari]

Can please someone explain why ductus venosus becomes ligament venosus?

[@xirishluck7]

I love all these videos, but I tried it with the closed captions today, and it was pretty funny. A lot of #%$ like it's trying to sensor the inferior vena cava

[@moser1274]

If you don't mind i'll try to give a beginning of answer. Answer: No, the blood of the mother and fetus must NEVER mix, there would be a rejection because of the major complex of Histocompatibility. If the bloods "touch" then the consequences will most probably be the death of the fetus. This is why the placenta exists, to ease the exchanges of nutrients, Immunoglobulins and other., hope this helps.

[@mjnelson001]

This is not entirely true (at least to my knowledge). Small (and I mean really small) quantities of blood will mix. Consider the rhesus incompatibilities between mother and child that can sometimes occur. In a first pregnancy where mother and child are opposing rhesus (+ and -) small amounts of blood can mix and mother can produce antibodies against antigen D (rhesus +). In a second birth antibody against rhesus can cross placenta (being IgG mediated) and cause haemolytic anaemia in the fetus.

[@studentnursesaima5836]

Thank you so much for this briliant video!