The Excretory System: From Your Heart to the Toilet - CrashCourse Biology #29

Hank takes us on a fascinating journey through our excretory system to learn how our kidneys make pee.

References
Campbell Biology, 9th ed.

Table of Contents
1) Homeostasis & Osmoregulation 00:00
2) Urea & Uric Acid 01:30
3) Kidneys 02:49
4) Nephron 03:40
5) Glomerulus 4:15
6) Bowman's Capsule 04:25
7) Proximal Convoluted Tubule 04:49
8) Biolography 06:16
9) Loop of Henle 07:36
10) Distal Convoluted Tubule 09:23
11) Collecting Ducts 09:57
12) Ureters, Bladder & Urethra 10:45

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[lazer-exe]

Not exaggerating when I say that this channel has saved my grades so many times! these kinds of videos also saves my adhd ridden brain the excruciating pain of reading and re-reading the same pages for hours

[mandydax]

"Mommy, where does pee come from?"
"Well, honey, when a Glomerulus and a Bowman's Capsule love each other very much..."

[nikosroom]

"From Your Heart to the Toilet..." sounds like my last xD

[georgebeauchamp]

The kidneys are like the pool maintenance guys at the Hilton: constantly checking pH, adding trace chemicals as needed, ready to open the floor drain if necessairy. Good work guys.

[kavyac]

How to study for bio tests- watch these videos, read your notes, understand things for the first time in forever. 

[vergaraliliana]

Table of Contents
1) Homeostasis & Osmoregulation 00:00
2) Urea & Uric Acid 01:30
3) Kidneys 02:49
4) Nephron 03:40
5) Glomerulus 4:15
6) Bowman's Capsule 04:25
7) Proximal Convoluted Tubule 04:49
8) Biolography 06:16
9) Loop of Henle 07:36
10) Distal Convoluted Tubule 09:23
11) Collecting Ducts 09:57
12) Ureters, Bladder & Urethra 10:45

[samsoldseashells]

Me: "I need to study for this Health test"
Me throughout the video: "OMG I FINALLY KNOW WHY BIRDS DONT PEE"


(Future me during my test)
"Whats the Excretory System again?"

[audreylahman]

Thanks for making these videos! I am a college student at Queens College taking Anatomy and Physiology. My professor seriously sucks. His lectures are 3 hours a week where he rants about being a failed doctor. He gives us powerpoints of notes that are on average 90 slides long and he tests us on information that isn't in our text books. I've been trying to teach myself all the body systems. Your videos are a little more basic/general than my class but they are helping me study. I apreciated the discussion of nephrons and background on Henle in this video. You do a great job of highlighting the important parts of  the body, explaining their significance and making it memorable so I won't forget on the test. lol. Thanks! I'm sure I'll be watching more of your videos in the future. 

[allofdestiny]

great breakdown! very helpful. wanted to get a quick review before we cover this in class.

[catsinorbit]

6, 633 people passed their tests
114 failed their tests

[kateturner]

Ok Hank, I seriously have to doubly thank you for producing this series and to all of your crew for making it. I'm studying to take a HESI-ADN test this Saturday, which is an 8.5 hour test that covers math, reading, and something like 6 different sciences, including basic biology, anatomy and physiology, chemistry, etc, and this is helping me gain a better understanding of some of these systems than I did from my actual biology classes. It's a phenomenal study tool, and I'll be recommending this to all of my student friends and my teachers to share. I can't say enough how great this series is.

[Religion]

Thank you! Thank you for actually making these subjects sound as interesting and as fun as they really are!

[nishkaawasthi]

Study from the textbook... No quizzes/hw grade. Only one major test for this unit which involves random super-detailed info on all eleven main human You saved my life, Hank+CrashCourse!!

[mulimah]

"Mango-sized kidneys"
Great. Now I want mangoes.

[jilldo]

my teacher showed this video to my science class. i completely started fangirling.

[chellieann]

I love this guy. he's awesome. he's funny and he loves what he talks about. I listen to him in the car. studying anatomy made fun!!

[shilpakaran]

"Which empties out wherever you point it!" LOOOOL.

[nedabiahwarner]

This channel is a gosh damn text book especially for Highschool level Humans and Social biology.

[Teo]

Thank you for the education. Please never stop teaching so I may never stop learning.

[anjamaraj]

Your videos are awesome, love the humor, love the colorful graphics and the information is concise but covers the important points.  I used your videos to study for my massage therapy exam instead of reading the books....Keep doing what you