I'm a little confused as to when 'spiral arteries' develop. In the video it says they develop in the leuteal phase during the no-pregnancy section but I just read elsewhere that spiral arteries are transformed/ spiralized by trophoblasts of the blastocysts (lack of the PRECAM-1 protein that causes spiralisation is thought to be a cause of preeclampsia). Does this mean that the increase in progesterone during the leuteal phase increase blood flow to the endometrium in some other way? (not hating or nit-picking for the sake of it just interested!)
Excellent video! how is this free again??
The best channel and the best illustrators I've ever seen. Thanks alot
But cant thank U enough
"when the egg fertilises it gonna need to hangout and grow" Love you guys !
Sir , you saved my life . Thank you !!
Now I know what is going on with this chart .Thank you so muchhh.
Song Nainway well can u help me with my chart ??😬
SERIOUSLY AMAZING couple of videos! Thank you!
thanks a lot Khan Academy, i really wont be able to thank you enough for this amazing explanation :D you are the BEST!!
So well explained.bravo!
Beautiful! I emailed this to my whole class. :)
Thank you, thank you, thank you.
Thank you for your generosity!
khan academy is one of the best things to have happened
Excellent explanation!
You are the best! Thank you 🙏
0:01
Thanks for the pornography warning.
Thank you so much! Great explanation!
Amazing drawing skills and explanation
great video!
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Merci beaucoup dear
God!!!! you are amazing
thank you very much
superb
Very nice
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THANK YOU!!
beautiful u make it easy for me 😊
Awesome
thank youu
I'm a little confused as to when 'spiral arteries' develop. In the video it says they develop in the leuteal phase during the no-pregnancy section but I just read elsewhere that spiral arteries are transformed/ spiralized by trophoblasts of the blastocysts (lack of the PRECAM-1 protein that causes spiralisation is thought to be a cause of preeclampsia). Does this mean that the increase in progesterone during the leuteal phase increase blood flow to the endometrium in some other way? (not hating or nit-picking for the sake of it just interested!)
Bilal khan Group 14 GME 4th semester
Aakash Gal GME_16
sir u just fertilized my eggs
⚘⚘⚘⚘
Thank you