Respiratory System, Part 1: Crash Course Anatomy & Physiology #31

So we all know that breathing is pretty important, right? Today we're going to talk about how it works, starting with the nameless evolutionary ancestor that we inherited this from, continuing to the mechanics of both simple diffusion and bulk flow, as well as the physiology of breathing, and finishing with the anatomy of both the conducting zone and the respiratory zone of your respiratory system.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

Chapters:
Introduction: The First Air-Breathers 00:00
Simple Diffusion 2:44
Bulk Flow 3:59
Mechanics of Breathing 4:30
Anatomy of the Conducting Zone 5:47
Anatomy of Respiratory Zone 7:07
Review 8:33
Credits 8:56

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Mark, Jan Schmid, Simun Niclasen, Robert Kunz, Daniel Baulig, Jason A Saslow, Eric Kitchen, Christian, Beatrice Jin, Anna-Ester Volozh, Eric Knight, Elliot Beter, Jeffrey Thompson, Ian Dundore, Stephen Lawless, Today I Found Out, James Craver, Jessica Wode, Sandra Aft, Jacob Ash, SR Foxley, Christy Huddleston, Steve Marshall, Chris Peters

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[crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

[robscallon]

I'm so conscious of my breathing while watching this

[wisperone]

Thanks! Your videos have proved priceless when teaching my EMTs. It makes it so easy for them to understand. They are fun and full of so much info. Now that you have the apps, I have sent that info onto my class to help them study for their EMT Class

[undergroundskeptic]

I gotta give credit to you, Crash Course, for helping me pass all my science tests.

[bozosaurus]

I've just recently quit smoking cigarettes and watching these videos makes me feel so happy to be smoke free

[sgw]

I have problems concentrating and making myself study... essentially I couldn't do it. Until these videos... thankyou for making educational videos that are done in an engaging and friendly way : ) Things like this are the only way I can study. : )

[kayelle]

Okay but really, this channel is the only reason why I passed my Anatomy and Physiology class.

[danieldong]

Anybody here watching this for an online school assignment while in quarantine cuz of COVID-19?

[fatherofjustice]

This was even helpfull for me, a university med-student, I have been reading 3 anatomy and physiology litteratures in order to learn everything, then you came with this video making me understand almost every important concept in a fun and easy way ! you deserve a lot of credits ! love ur channel, and here you get one more subscription !

[IceNixie]

6:24 I'm pretty sure that sharing the throat for breathing and swallowing IS IDEAL, as anyone with a bad cold can tell you. It's really, really good that we aren't restricted to ONLY breathing with our nose and swallowing with our mouth. Like really good. We'd all be dead.

[ateenagebookworm]

The only reason I still have hope for my future is because Crash Course exists.

[lucygilmour]

I keep getting set extra work by my science teacher because I'm enthusiastic and this channel has allowed me to do really well in the research. Thanks to this channel I get to participate in a science day for g+t pupils on Tuesday! x

[UzumakiNaruto-ezjc]

The second he showed the diaphragm I started to voluntarily breathe.

[medjed]

why doesn't oxygen learn parkour then it can get over the obsacles easier

[MysticNessly]

Learning this in the classroom, I got pretty much a solid understanding of all this, but paired with the graphics you provided really helps to see how these systems intricately work together. Makes you appreciate life more. FASCINATING stuff

[Fifi-wsnu]

Hi, I’m 4x something and no science background. I’m a nurse student and your explanation is clear and easy to follow. Thank you very much! 🙇🏻‍♀️🙏🫶🏻❤️👍

[Hyperian]

thumbs up if you were breathing consciously the entire video

[adamedengodlandscaping]

Its amazing, how intelligence is necessary to understand how all this works, but not necessarily to develop the system itself.

[jriceblue]

Just going to say: that was one of the best introductory sequences Crash Course has filmed. ...Yes, it was a long one (2:35?) ...but it was worth it: colorful, illustrative, informative, and entertaining. (...and well-read. ...and well-illustrated!) Kudos.

[DeepikaSharma-jxwi]

What wonderful graphics and such an amazing way to explain the difficult concepts about the human body. Thankyou for your video.
Just a small request -
I wish you could speak a tad bit slower though. The information was moving too fast to take it all in.