Urinary System, Part 1: Crash Course Anatomy & Physiology #38

Even though you probably don't choose to spend a lot of time thinking about it, your pee is kind of a big deal. Today we're talking about the anatomy of your urinary system, and how your kidneys filter metabolic waste and balance salt and water concentrations in the blood. We'll cover how nephrons use glomerular filtration, tubular reabsorption, and tubular secretion to reabsorb water and nutrients back into the blood, and make urine with the leftovers.

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

Chapters:
Introduction: Urinary System 00:00
What Do Kidneys Do? 1:25
Urinary System Structure 3:02
Nephrons 4:13
Glomerular Filtration 4:37
Tubular Reabsorption 5:14
Tubular Secretion 8:17
Urine 8:40
Review 9:10

***

Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Fatima Iqbal, Penelope Flagg, Eugenia Karlson, Alex S, Jirat, Tim Curwick, Christy Huddleston, Eric Kitchen, Moritz Schmidt, Today I Found Out, Avi Yashchin, Chris Peters, Eric Knight, Jacob Ash, Simun Niclasen, Jan Schmid, Elliot Beter, Sandra Aft, SR Foxley, Ian Dundore, Daniel Baulig, Jason A Saslow, Robert Kunz, Jessica Wode, Steve Marshall, Anna-Ester Volozh, Christian, Caleb Weeks, Jeffrey Thompson, James Craver, and Markus Persson

--

Want to find Crash Course elsewhere on the internet?

[SquatSimp]

This helped more than a 55min anatomy lecture at a university— thank you

[Catlover.]

Dude if you were my professor, I would be a doctor by now. Your way of teaching just resonates with me so much. So easy to absorb

[susantheho]

I just wanted to say that I was able to get an A on my Human AP 2 exam by watching your videos for further understanding of my notes and power points! Thanks a bunch.

[northvanman]

This guy makes learning Biology soooo much fun!!! THANK YOU !!

[crashcourse]

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

[alexabourg]

This video makes me realize that I have to stop making jokes about selling my kidneys.

[macielynn]

I’ve watched this entire course too to bottom for my A&P I and II class. It even goes in order by my book. THANK U CRASH COURSE! This channel has helped me on my test like no body’s business

[jameswray]

It's fascinating to imagine how our organisms manage all of these complex processes, and how they came to be in the first place.

[jamiekuhn]

I am currently in nursing school and this video helped a lot with the current topic of renal failure! Is there any chance that you all are considering creating a pathophysiology course??? These videos have helped me a lot over the last few years and the way that you guys present information is amazing! Thanks, guys!

[ikaseptiyani]

i am currently in nursing school and this video helped a lot with the current topic of renal failur! Thankyou very much😊

[americanbee]

I used to find crash course videos also too fast. I recommend to learn it from the textbook or whatever professor says. And then watch a video super fast for the overview, to refresh and see if you learned it good

[kikitsar]

Yes he talks too fast but that's the unique part of it. He holds your attention, great job. Thank you😊

[wecantbefriends]

Didnt expect to learn how to clean out a refrigerator but here I am.

[shyandagger]

Crash Course, I can’t thank you enough for making these videos. Anatomy and physiology are prerequisite classes for me and I don’t even know what I’d do without your videos. These videos give me a great basis on each topic we tackle and it helps immensely with understanding the basics. Thank you!

[SayaCeline]

This series is a life saver! I'm able to watch an episode after studying to get a nice little summary of what material was just covered and thankfully you and my professor use the same terms!!! You guys are so wonderful!

[EMedNation]

Your explanation as a great starting point presentation and could actually be given at every medical, nursing school…and it would be great for college and high school…because of how you describe pretty much everything…it makes a great overview…you vide many key definitions, anatomy, and functional relationships. Really great!

[mckrokonus]

Wow 20% now I respect my kidneys more then before, thanks kidneys!

[aperson]

I have to say, when I saw this video in my subscriptions, I was a little pissed.

[BeckyMeetsWorld]

This is helping so much for my medical terminology midterm tomorrow. Thank you Hank!

[jessieevans]

I spend so much time cracking up at this guy that I have to keep rewinding to learn all the bits! Thank you for your helpful and hilarious ways of teaching biology :))))