We’ve reached the grand finale of our four-part series on human reproduction: BABIES! Today Hank walks you through the stages of pregnancy, beginning with how a zygote develops into blastomeres to a morula to a blastocyst, and finally to an embryo and a fetus. He also explains some of the amazing anatomical changes that take place in the mother and the hormonal sequence of events that lead to labor.
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Chapters:
Introduction: How Did You Get Here? 00:00
Cleavage Stage: Zygote, Blastomeres, Morula, Blastocyst1:34
Implantation 3:08
The Placenta 4:50
Embryonic Stage 5:07
Female Anatomical Changes During Pregnancy 5:30
Hormonal Sequences Leading to Labor 7:12
Stages of Labor: Dilation, Expulsion, Placental Delivery 8:35
Review 9:34
***
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Pssst… we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Wow
Scarrrrryyyy !!!! 😱
please make a video series dedicated to microbiology !!!!
Please add Korean subtitle too 😭
Who you calling pinhead?
Yayyy WE'RE DONE WITH AP2 CONGRATULATION EVERYONE YALL DID IT WOOT WOOT
I was introduced to your videos last semester in A&P1 and have watched you since! But this semester I was introduced to your history lessons AND I saw you in some art assignment videos! You've changed a lot in the years! Good for you, can't wait to see what you teach next 😉
Thank you for these videos; what a time-saver!
Please, add spanish subtitles 🙁
I am 5
yea im never getting pregnant
That is the point of a pin not a head🤭
It’s getting increasingly complex as it goes down the Fallopian tube. Nope. Wrong. That’s a faith statement. There’s no evidence whatsoever for that. Glad he resisted his usual creepy innuendo this time though.
and yet after this…. people still believe that evolution is real
I love my mum a whole lot more than I already did now 🙂
You should add a fetal development video to this series.
i wanna grow up now…that is what I said before, now I'm 17 turning 18 in October
Thank you for triggering my trypophobia!
All the beauty of the process of birth making and there are still people who think abortion is a moral thing to do.
😂
💘💔
fun fact: the "pull-out method" is an official scientific method of natural contraception, and it has a name. it is called "coitus interruptus". have fun
I'm hard
Combine alleles
WHERE WAS THIS THE WHOLE TIME 😩
I have had 2 vaginal births can’t wait for my next little buddy. I love being a mom
set to .75 speed ur welcome
Wow! Thank you 💛