Reproductive System, Part 1 - Female Reproductive System: Crash Course Anatomy & Physiology #40

[@crashcourse]

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: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/2SrDulJ

[@LandonHughes2]

This guy for some reason actually makes learning fun and enjoyable. I don't know what it is, but thank you.

[@dawsen1855]

drazapatos L

[@curleyjackson6807]

Thank you man I will subscribe

[@nataliamontserrat4519]

It's his sense of humor

[@dickiewongtk]

The animation helps, a lot.

[@arzoo9221]

Same for me

[@georgiam4725]

21 year old woman learning more about her anatomy in the last 10 minutes than her entire educated life. Thanks, high school biology for making me feel like a gross weird meat bag and thank you Hank for not beating round the bush. ...Pun 100% intended.

[@laurarutherford7795]

He quite literally doesn't beat around the bush :')

[@ds-nb4ln]

There are many components to studying human anatomy. One place I discovered that successfully combines these is the Sebs Study Crammer (check it out on google) without a doubt the most incredible info that I've seen. Check out this interesting resource.

[@शिवभक्तबाबन]

I am from India this video is most usually for me. Thank you sir yours teaching is the best, your explaintion is so easy for understanding.

[@nikolavideomaker]

it's a great video. But, how did your school make you feel like a weird meat bag, while hank didn't? They literally teach you the same things and that is the truth we are weird meat bags.

[@eceive6022]

I can't imagine how much editing must be put into these videos.

[@lordvoldemort1864]

[Ɖeceive] 69 likes

[@tuffymissile6384]

Ik right

[@LDJ27]

I've had PCOS (Poly Cystic Ovarian Syndrome) since I started puberty at 12-years-old, and this 10 minute video taught me more than actual doctors have over seven years, so thanks a lot, Crash Course!

[@frankschneider6156]

+Linda Maria You know, there are these things called "books", that people have used in former times to beg for wisdom by the gods, it's not that long ago that this was done, so some people knowing of this ritual technique may still be alive .. you could also have used this method

[@kimberlyforti7596]

The phrase seems pretty bad, you should get it checked out

[@kir-is-here]

+Frank Schneider you make a valid point, but when you're a twelve y/o girl your mom already makes awkward conversations about puberty. Could you imagine asking her to buy you books on it? Or go to the library? Most of the books aimed at teens for pms are titled things like "EXPLORING YOUR CHANGING BODY," which is mortifying to read.

[@frankschneider6156]

Kirsten Joy You can get pretty much all of the basics from every introductory textbook on physiology. I mean I get your point, but if someone wants to know about a topic and doesn't look it up, that's highly irrational. Staying unknowledgeable just because of fuzzy emotions is imho a behavior that can not and should not be justified.

[@diamcole]

+Frank Schneider Chances are she attempted to do her own research on the matter and then turned to doctors for more in depth answers because she didn't fully understand. Nothing about that seems irrational when you consider that while yes, books are there for our own personal development, there are people who are deemed professionals and experts in their respective fields and it would be illogical to not seek them out because you've found a couple of books related to the topic in your local library and think that means you've now got all you need to solve the problem.

[@katiedejesus9986]

LOOK AT HOW CUTE THE PRIMARY OOCYTE IS

[@etomayk]

For real, I took at least 3 seconds to admire it every time It made an appearance

[@nataliamontserrat4519]

3:27

[@AudreyAWeirdo]

IK SO CUTE!

[@darrianweathington1923]

finally i learn how you Earth people keep coming back... I mean good video Hank

[@ZingZazaza]

ok

[@SilverStormClouds]

Could you do a video on disorders of the female reproductive system, such as polycystic ovarian syndrome, endometriosis and premature ovarian failure?

[@laylajade1557]

Elizabeth yes please, i have pcos and i wanna know more

[@TheBamagirl125]

laila jaed same!!

[@mrtoast3319]

Hmm I'm actually kinda surprised how mature the comments here are. I mean there are some immature ones but actually alot of knowledgeable comments.

[@frankschneider6156]

+Mr Toast Yeah, we must have gotten into some sort of weird parallel dimension where people behave as thinking beings would do ... very creepy

[@Melecie]

i came here to see how bad the comments are and save the worst of them. surprisingly mature, as most of these are people preparing for exams and not those less mature people who make jokes about this specific system

[@lagoonroom4600]

He forgot to mention it's painful as f***

[@isaiahhaddock8803]

Glad I'm not a girl. :)

[@RainAngel111]

+Selina Cox It's not always painful. Not for everyone and not forever. Some women have bad period cramps and some don't.

[@CinematicController]

+Selina Cox *Comfort pat* Thank you for dealing with biological bullshit for the sake of our race

[@spindash64]

+Frank Schneider ...............................

[@frankschneider6156]

***** Yes, I'm perfectly aware of that ... so what does that change ?

[@ThatAnnoyingBird]

This will end with a bang,

[@spindash64]

Slow clap

[@sirBrouwer]

+Mistergamer9892 No a baby

[@sirBrouwer]

***** I don't know I only reacted to Mistergamer9892 his reaction. he said ''This will end with a bang,'' So I only corrected him with ''No a baby'' It's what happens when you introduce a male organ with a female organ. it ends if succeeded with a baby.

[@Abominatrix650]

You're right. It BEGINS with a bang instead!

[@jhonnycagexrage7458]

Ahhhhh 👉🏼👉🏼

[@healyrose4957]

I'm a girl and I feel dumb not knowing half of this

[@GeneralPotatoSalad]

+Colossia Woodford Well, now you do know, so don't feel dumb! :)

[@esmee7169]

+Colossia Woodford well that's what these videos are for..

[@HercadosP]

+Colossia Woodford Well, atleast you watched this to know. The dumbs are those who use youtube to not watch science videos

[@rainstorm1809]

+Colossia Woodford don't blame yourself, blame the lack of comprehensive sex education that led to nobody ever teaching you the stuff you didn't know.

[@killerbee2562]

+Colossia Woodford Well you know it now!

[@hugosetiawan8928]

I AGREE!, we're talking about the future of humanity My friends are very shy to talk about this, Idk why they are like that

[@thegeekiestthingtohappento9610]

I think I'm going to make "congratulations you just ovulated" my ringtone

[@nixypixels6440]

I am blown away at how visually stunning these courses are! I'm so hooked! Thank you!

[@liz_3d]

Literally have a test on this tommorow BEST TIMING EVER

[@jasminelitsa]

This is so helpful as im currently preparing for my IGCSE in 2017 however i could do with you speaking a bit slower but none the less the videos are great!

[@fantyfavs222]

SAME

[@tabbilal5919]

its isnt as useful for gcse's as it contains alot of information u dont need to know

[@holypicklesmofo]

Jasmine litsa I don't think you need to know any of this for GCSEs?

[@jasminelitsa]

holypicklesmofo It does cover a lot more than i need to know however it does cover what i do need to know pretty well. // Even so, i watch these vids just for my own personal intellectual growth.

[@BigChungusthe3rd]

seriously, these videos are one of the best teachers I've ever had

[@bree789-x8c]

As a woman I find that I am not ashamed to talk about ovulating and periods. Women should not have to be ashamed to talk about our reproductive organ. Uteruses are amazing! Well done.

[@turdl38]

Waiting for an outtakes reel of Hank having a hard time saying "Congratulations, you've just ovulated!"

[@roxana5490]

From what I can tell of Hank, I feel like he's the type to do it once and cheekily proud :D

[@israelmojica11]

"when Talking about sex, we are talking about the future of humanity" I think I will use this line a lot.

[@lar9299]

I love this guy and the videos! they are so concrete, fun to watch, entertaining and so educational! it's so much better than spend a whole semester learning about anatomy. Also, some people are a little inmature when it comes to sex or genitalia (including me, OMG that eggplant LOL); the way these topics are presented here are completely accurate, scientific with the actual terms and professional, BRAVO!

[@thomasking49]

6:28- "congratulations! You've just ovulated!"

[@vincent-of-the-bog]

Damn you, I can't atop re-watching 5 seconds of video now.

[@valhalla1240]

... is a sentence only actors from Magic Mike should say to me.

[@truthseeker8200]

Basically layed an egg

[@ebtisb12]

I would like to thank you from my heart for two reasons. First, for your comprehensive explanation. Second, to include the Arabic translation in the video.

[@GuilhermeCarvalhoComposer]

Congrats and many thanks for the use of "anatomical female" and "born with a female anatomy".

[@678994A]

Guilherme Carvalho you mean women

[@markm0000]

+minipax I'm on the same page. What has happened in the last 10 years of society can never be reverted. There is only a man or a woman. Otherwise you have mutations. This is just base body structure, not higher levels of identity and gender.

[@mahimabhaskar2540]

@@markm0000 gender and sex are two different things

[@alliroma3383]

@@mahimabhaskar2540 not really. Gender is a social construct based in sex

[@FanFlorentMothe]

bless this video. It is 8:40 pm and tomorrow I have a biology test about hormones and all those stuff..you resumed 2 months worth of course in 10 minutes go you.

[@nkosizandile7291]

I'm letting my 10 year old watch this when the time comes

[@cheezywizard5292]

This video is rated R for Reproductive

[@garethdean6382]

But is this video blocked in Texas and Alabama?

[@mathew_monkbot1018]

Nope not Texas

[@kayleg1861]

Why would it be blocked?

[@Avigailmichal]

+Kayle G they dislike talking about sex ed beyond "Don't have sex. you'll get pregnant and die or get an std and die."

[@a_cc4954]

+Gareth Dean Because not learning about sex, is the best way to prevent sex, duhhhh

[@greagandev]

Lol! Yea, I'm in Texas and that was a very funny comment.

[@chownlee]

Hope Hank briefly talks about what happens when the system doesn't function as it should. A significant number of people born with a female reproductive system don't have regular ovulation or menstrual cycles and it would be helpful for people to have a basic understanding of why this can happen.

[@aboofahd1679]

keep up... a ten minutes video has just explaind a two hours of M.C lecture

[@ayeshlee8051]

Thank you for getting me through my nursing course Hank! x

[@roxana5490]

Also something cool I learned is that the egg does not necessarily come out the opposite ovary every month (like alternating). Sometimes it may be the left ovary for 3 months in a row, etc.

[@nine3620]

I feel like it would be interesting to see how different birth controls can affect the process or just drugs in general.

[@mmmm32837]

you deserve an emmy for these ive watched all the A&P ones

[@brandonnguyen6419]

Perfect timing. I have an exam tomorrow and my textbook is wide open, but I tried to distract myself with KZbin and this popped up on my subscription.

[@annandale_usa]

Brandon, what is your Vietnamese name?

[@brandonnguyen6419]

+Quoc Nguyen Why do you want to know that?

[@damesfordays892]

Girl are you FSH 'cause you sure stimulate my follicles! Yeah, I'll just go home now.

[@Misha_Lee]

😂😂yeah

[@lycheemyusic]

this has strong lesbian power

[@psychoguineapig4279]

who bets that this video will get twice as many views as the next assumed "male reproductive system" video?

[@TheShicksinator]

But what will 3 and 4 be?

[@chickenmonger123]

+EquivalentExchange 2 I don't really think so.

[@sudipto1585]

+sean Hicks What about 3. Puberty, and 4. IDK

[@lisha9659]

I think the next video will still be the female reproductive system. At the end he does mention that they will talk about what happens if the egg is fertilised.

[@prav8141]

+EquivalentExchange 2 part 2

[@RainAngel111]

Yes I've been waiting for this episode!

[@drink15]

+RainAngel111 I bet you have...

[@lagoonroom4600]

Secretly we all have 😏

[@RainAngel111]

drink15 yes. as a woman I am always happy when people learn about our reproductive system. There's so much misinformation around it.

[@MontySlython]

+RainAngel111 Not really, unless the country's education is terrible, or parents misteaching aside from that in a normal first world school its all good.

[@leopachis6321]

"Born with female anatomy" not just 'girl' GOD BLESS YOU

[@alliroma3383]

If you're born with female anatomy you are a woman

[@oinkoink4407]

@@alliroma3383 not all the time

[@alliroma3383]

@@oinkoink4407 yes all the time lol woman = adult human female

[@oinkoink4407]

Alli Roma yes a woman is a female but thats not my argument. im saying someone born with female anatomy are girls MOST of the time but there are cases where people born with female anatomy end up being boys.

[@alliroma3383]

@@oinkoink4407 they dont have full female anatomy if they are boys. Like someone w AIS is a male because they have testes even if their outward genitals look like a vagina

[@Callumthenarwhale]

@CrashCourse just wanted to say a massive thank you for your videos, currently in first year at university and the physiology class is ALOT easier after watching the videos, I look forward to watching the next set of reproductive anatomy videos :)

[@capple2949]

Why does this guy make reproductive systems not make me uncomfortable? Maybe cause there’s an eggplant everywhere?

[@thatweirdmusicalwerewolf7660]

I was really expecting the comments to be disabled. Thank you, mature viewers, for not making me want to poke my eyes out and instead feel pleasantly impressed.

[@Pikazilla]

this will be on their top 5 most viewed episodes; guaranteed

[@sallycrow1494]

AH Bio Exam in 18 hours! Crack down time...

[@liftersparadise]

lol Have my Anatomy Exam Next Wednesday!

[@stephaniekienzle9348]

I'm just impressed to hear this dude talk about all the happenings of the female genetalia so detailed and not grossed out.

[@caribaez5711]

I really want to take biology courses so badly. I am so freaken curious about everything. I want to take biology so much.

[@petitTherapist]

Thank you for releasing this videos just in time, CrashCourse Team, for my future midwifery test in a month!

[@animetrash146]

"Congratulations, you've just ovulated" I lost it

[@kaelyncurrie5097]

he knows more about our reproductive systems than what most women knows lmao

[@marshymarsh1333]

Even in 2020, this is useful '_' I'm trying to learn this 2 days before exam.

[@ahmedwindows3015]

me to

[@cloverheart7]

Studying for my biology final tomorrow...thank you Hank!

[@syddlinden8966]

FINALLY! Competitive Sex Ed! Thank you Crash Course! You guys are awesome! We SO need your kind of full, comprehensive, science-focus, biological education in All The Schools! Teach the children! Teach the people! Save the world! :D

[@syddlinden8966]

'Cause OHMYGAWD, so much stuff I didn't even know about my own body! This covers SO much more of the biological process than anyone EVER talks about. And that is FANTASTIC!!! Seriously, WHY wasn't this covered in my biology classes in school?!?! I also realized this video kind of explains what my birth control exactly does to regulate the whole process to keep my cycles less painful and, sure, prevent pregnancy. (pst! covering the biology at work behind birth control would also be awesome!)

[@imagisma]

Whoa you're amazing! My lecturer explained this for hours yet nobody in my class understood.. Those animations are really helpful. Thanks a lottt

[@Kingwut117]

I predict this to be the most watched video for Crash Course xD

[@marieprestegard2495]

I learned a lot more from this one video than I did from several months of sex ed in school, and in school it was in my native language, it says something about the school system.

[@drink15]

Didn't know that sex hormones look like delicious candy! 0:50

[@mathew_monkbot1018]

Vary tasty candy from wonka!

[@mathew_monkbot1018]

+Mathew Mendel didn't include that in Willy Wonka and the chocolate factory did they.😄

[@ChessMultimedia]

+drink15 ♟♞♝♜♛♚ David Cortese - Manga Chess ♙♘♗♖♕♔

[@exeggcutertimur6091]

+drink15 Candy just in time for Halloween!

[@ASTROTZUR]

+drink15 those are the same candies from the "free candy" truck

[@MoonHippie134]

Thanks for teaching me more about the reproductive system better than any schools I've been to in Texas

[@adamborison3054]

I would also add that if it were biologically possible, evolution would just make you one big reproductive system. But it needs to get nutrients, and so it needs another system, and then both of those need oxygen, so you need one for that, but at this point it's too big so you need a circulatory system, and them all of this is too stupid to survive, so it needs to react with it's environment, and we get killed by viruses and bacteria, and it needs to move and have structure, and it needs a protective layer... Point is your body is there to provide for your reproduction. It is what drove evolution, and all of this amazing stuff we call life was produced in the process of becoming efficient at it.

[@october666_]

Also: During the period the uterus is contracting. The uterus also contracts during birth. So during the period you experience small and mild labour.

[@FPMwitty]

that moment when youtube video actually taught you more than your university did.

[@SeanGuiraud]

At 7:05, once the egg is fertilized by the sperm, it is an Ovum, but it becomes a Zygote once the nucleus of the sperm cell and secondary oocyte merge.

[@DuranmanX]

The future of humanity depends on it!

[@heyysimone]

alright, ive watched this once but i will tackle it again tomorrow and take notes for my anatomy exam.

[@joyking6100]

Please release part 2! I have an exam on the reproductive system on saturday and you explain it so well!

[@ElenaRox1994]

why did i find this now? my exam is in less than an hr! TT_TT but omg made things so much clearer! Thank you!!

[@jmvt3]

Can't wait for this video to go viral.... Because of reasons

[@77hreatbreakkid]

You guys should do a series called "Crash Course Biographies"

[@Nokkinator]

Eggplant! 😂😂🍆

[@rjfaber1991]

Aubergine!

[@Nokkinator]

Literally same thing :D I'm guessing you're not from America!

[@BloodSprite-tan]

+Nokkinator i think u fail to realize that the eggplant is a ovary.

[@ChessMultimedia]

+Nokkinator ♟♞♝♜♛♚ David Cortese - Manga Chess ♙♘♗♖♕♔

[@drawingcity5142]

😂😂😂😂😂😂😂😂😂

[@KatieWady43]

I love your videos but SLOOOWW DOWWNNN. Why in such a rush!!??

[@migueltrevino814]

I crashed when I saw the eggplant🍆

[@alejandrobugarin9146]

I liked this video. Well explained. It seems like the host is emotionally invested in the presentation.

[@duaazhar5278]

the speed was too fast for this much of information. woah!

[@KarascioM]

This is it. Crash Course is going viral!

[@joheyjonsson2825]

Cramping of those muscles can be really painful. My husband described one of my really bad cramp attacks as "That looks as painful as being kicked in the nuts". Can't know if it'll be mentioned in the next episode, but not all fertilized eggs succeed in drilling into the uterine wall. I believe, and please correct me if I'm wrong, that only about 1 in 4 is actually completely successful.

[@mandaaguirre1460]

Please make an earth science crash course! Your biology crash course helped me pass the regents.

[@CrystalCummings1985]

you make this more complicated than it actually is. its much easier to learn from a text book. i thought this channel was to help people have a better and clearer understanding of things that can be challenging to learn from text books. you should try using more layman terms so its not so complicated.

[@jalenm6920]

Not that complicated.

[@MontySlython]

+Crystal IslandGirl What kind of formal education have you had? At the very most this is 9th grade biology.

[@CrystalCummings1985]

we dont have a 9th grade in my country and biology is an optional science subject. also i did do this in school and yes i find this explanation more complicated than what i learned in school.

[@MontySlython]

Crystal IslandGirl Hmm, in which case you have a valid reason.

[@MontySlython]

Crystal IslandGirl Besides you don't have to understand every bit of this, I for sure didn't understand some of the chemicals and such, but the basic concept is pretty simple.

[@tomrey5]

You guys are the best! Literally just in time for my exam

[@nataliel7604]

This is perfect timing. My current biology unit is on the female reproductive system and such and this video elucidated a few things!

[@shannaefiddyment4888]

1:10 bottom right corner. Why crash course becomes the best educational site

[@baltoen_]

But.. Why does it hurt? Is the pain really necessary?

[@mathew_monkbot1018]

I'm no surgeon, but from what I've heard it hurts because the unfertilized egg is pushing up against the uterine wall. That's what causes both the bleeding and the pain, but about the other pms stuff I couldn't say. FYI I'm a guy.

[@TheFindingLight]

+Baltoen Your uterus is contracting to help with the process of removing the functional layer of endometrium. Think of it as extremely low-key birth - instead of pushing out an entire human you're just pushing out some mushy tissue and blood. This is also why you might notice more frequent or less solid bowel movements at this time as your colon is pretty close behind where the uterus sits, and those contractions can get things moving a little more. So yes, unfortunately the pain is necessary.

[@mathew_monkbot1018]

Also thanks for adding a genuine question and not some foolish joke to the comments👍🏻😄 there are no bad ideas!

[@TheFindingLight]

Mathew Mendel Refer to the answer I provided :) Tell whoever told you that story about what I said :P Spread the education, friend! Edit: okay so ovulation pain is a real thing as I have just learned. However menstrual bleeding isn't caused by the egg pushing up against the uterine wall per se. The egg gets embedded in the endometrium, and then the uterus contracting is what causes blood (endometrium) to come out.

[@azbrowne]

So many Christians will have that answer for you.

[@ninamartens650]

Omg thanks Hank! This will really help me with my exam tomorrow

[@cortster12]

1:07 The eggplant threw me off until I remembered that's pretty much an ovary .

[@pillowsandblankets1432]

I. LOVE. THIS. THANK. YOU. MY. GRADE. IS. SAVED

[@raihan200]

Deal lord, this guy is too clever, wish that I was like him. maybe one day!! keep up the good work for crash course a&p... love this subject the most. :)

[@j.m.h.6363]

Kudos to Hank Green for being able to discuss this with a straight face.

[@mailee1627]

Instead of giving my kids the 'birds and bees' talk, I'll show them the crash course videos

[@sydneyschaffer7213]

My biology teacher introduced my class to him and we are doing this chapter next section

[@artlisticlove]

thx this will help me avoid having children

[@Turbo9987]

I've learned more from these courses than my high school sex-ed classes.

[@christiant.9091]

Good channel! My biology teacher put on one of your videos about the plasma membrane today.

[@sweetpea9394]

I taking A&P college course and I barely learn anything from the book. These online videos makes everything much easier!! I wish he would slow down when he talks though. I have to watch the videos two or three times just to make sure I don't miss anything. lol

[@itsadham]

Who watching this because they got an SAT biology test tomorrow (5 November 2016)

[@gerickamaelegaspi7263]

me

[@mousehead2000]

i'm watching this because i have my tests in June (2017).

[@kayleighperry6200]

It doesn’t stop at school. I’m at university and I’m still using these

[@willthomson2577]

wow i have a bio exam in 3 hours and i was looking for a video on the menstrual cycle. Perfect timing.

[@moonflower813]

It's interesting to me how variable of an experience women have in regards to our periods. Some women I know have the worst periods ever, and complain of awful cramps every month. And there are women, like myself, who got extremely lucky in the period department. My periods are not the most enjoyable experience, as feminine products are annoying to deal with, but I don't get cramps at all. I really lucked out there.

[@brightphoebesays]

Wow, that was a lot of information in short order!

[@MahoganyRaven]

Where's the Mongols when you need them?

[@aperson22222]

+Jay Crunchy They're the exception.

[@lauraponicki3851]

+aperson22222 you are fucking awesome

[@aperson22222]

Laura Ponicki Thanks, I try. :)

[@yalnayal]

omfg😂

[@soonamisapphire2425]

Way better than school 🏫 thx

[@sejsew9819]

"congratulations you've just ovulated" 😂 that needs to be on a sound board lol

[@missioncontrol4662]

This helps me study for my quiz tomorrow