Urinary System, Part 1: Crash Course A&P #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.Anatomy of Hank poster: of ContentsKidneys Filter Metabolic Waste & Balance Salt & Water Concentrations in the Blood 1:25Nephrons 4:13Glomerular Filtration 4:37Tublar Reabsorption 5:14Tubular Secretion 8:17Urine 8:40***Crash Course is on Patreon! You can support us directly by signing up at 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?Facebook - - - Support Crash Course on Patreon: Kids:

Marbelin Espinal

That was amazing 😮✨

_ NicWereHere

I just realized that you guys are all wearing the same color

Danish Martin

Hey in lorax movie ted wearing shoe taht the produtct name gru shoe

steals golf cart

Reece Samuel


Rain Storm

7:55 : When Bae's home alone

Naning Wikandari


Rohit Dulku

9 years

Asap Vbek

Anybody GNAR fan?

Lucas Scott

He definitely missed the red circle on the dunk tank

sweetu the gamer


Turkey killer415

I found it


I'm so HYPE!!

Anthony Wells

Do you think that Ty actually lie used I think Garretts grandma?Like kf u think no comment if you think yes

the bombnoicam

the way you connected all of the tiny ducks to the huge duck reminds me of that one (unfair) mario party DS minigame




GTA 5 Bigfoot VS Teen Wolf... WTF?!

Jj Garcia

He did not leave you he got in a car crash it not his fault but sorry for your lost


2:06 I saw that dj Khaled Easter egg

mel k

Everyone is saying they feel bad for people who lose their kid before they meet them, but if you meet them ur gonna get attached to them and u get to know them which makes it even sadder


11:37 skull trooper

Soccer Master

I feel bad a little

Supersmashbroz !

This is my favorite Stereotype video

Street kids

Backwards trick shot

A Person

"a teacher sAvEd mY liFE"


Hey GuruKid will you make shadow warrior's 2 easter eggs ? because i've found some and it's awesome :)


steph curry

Jerome Valeska

God bless you dude perfect you have made the world proud




just a wandering riven main


Euan Mort

Goodness! That must have been scary for them. Thank goodness they were unharmed.

Azka '02

For fucks sake Guru,why dont you just find the secret Nazi Enigma code