Urination | Renal system physiology | NCLEX-RN | Khan Academy

Created by Raja Narayan.
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[@KatieCollins731]

I would be utterly lost in my self-paced online anatomy course without your videos. Thank you!

[@moniquecattron2192]

I love the ultrasound. Thank you!

[@Justmeveenab]

amazing. thanks so much for this video

[@sayantanichattopadhyay8767]

all the videos were great!! they made my studies easier :)

[@kimsimmons7978]

Great intro and your explanation was excellent. It helped a lot

[@lovemoreluzu4134]

So educative and awesomely amazing 🎓🎓🎊

[@anonymous-pb2fc]

your intros are hilarious seriously ........

[@lovemoreluzu4134]

Very nice

[@ragnarokmero8412]

thank you

[@DiscoMadness38]

I learned a lot

[@katybogo]

You are the best!

[@ameilagrey9528]

amazing as usual Raja Narayan

[@lovemoreluzu4134]

Awesome

[@Jim_96504]

Awesome

[@BiprojitNath]

Excellent set of vidoes! Informative!

[@lovemoreluzu4134]

Veru

[@Jim_96504]

True

[@nishvk8948]

Internal urethral sphincter z absent in female ????

[@juanpalhares1427]

his voice sounds just like chris evan’s

[@tobesroxx]

Just an aside- the ultrasound video is upside down! The area in the top of the image is actually more inferior/ posteriorly oriented in the body

[@VoidHalo]

When I have to take a leak when I"m with friends I just say I'm gonna go make weewee.

[@VoidHalo]

@Marcus Ford What on Earth has that got to do with anything? Totally random.

[@minapoudel186]

Could you tell me? what happens when you pee by placing your head down and leg up? Does urine come out Or not ? I am asking this question considering gravity ......

[@TenderLemonWedge]

I'd consider the answer being similar to that of how the esophagus works, where it's more of an involuntary thing once it reaches certain points. We can't hold our urine forever, regardless of position. Gravity can only allow the process to speed up (like how standing up right we swallow much smoother than swallowing food upside down). To explain in a deeper level though, I'm not sure how to put that into words. :'v
*Two month late bonus* woo!

[@mariannetouma1891]

2 years later, but better late than never right?
the urine would still come out because of a movement similar to peristalsis

[@VoidHalo]

Gravity has little to do with urination. Whether you urinate or not depends on the contraction of your detrussor muscle while your urinary sphincters relax. It would be like if you were to try and eat while doing a hand stand. The food would still travel "up" your esophagus and into your stomach because of the muscular contractions. If this weren't so then astronauts would have a very difficult time in space. Hope that answers your question.

[@dwight4643]

6 year later you tried it ?

[@joenorthup8265]

Seriously would be nowhere without Khan Academy

[@millyjeffries8422]

just watching this makes me wanna go pee... went to the bathroom like 3 times lol

[@falkmieschendahl7687]

u

[@MeliaMilhorat]

That intro is hilarious! But if someone actually said that, that would be the moment they become a total douche!

[@triatomic5703]

1. how is it hillarious. 2. douche is not a word anymore. its nerd.

[@paigevarin7802]

I love these videos and they have helped me so much! That being said, it would be super cool to hear some of these videos revised to say "people who have penises" or something, rather than "women" and "men". Trans patients need competent health care providers who don't assume things about their genitals (UTI risk, for example) based on gender.

[@triatomic5703]

omfg y do i have to learn this stuff

[@drsultansaudagar2733]

females do not have internal sphincter....otherwise it is best lecture👍👍👍👍

[@melle7505]

excuse me? women most certainly do have an internal sphincter...

[@ginamarielogrande4651]

Yes they do.

[@stephenmbutaku3969]

i think its mictition not mucturition. great videos tho.

[@aquadaughterofwater]

no it's micturition

[@ginamarielogrande4651]

Its MICTURITION

[@pricilliacaldwell525]

Now i have to pee

[@ktie28]

where is the non binary urethra lol jk

[@christopherhason2739]

WE HAVE TO STOP THIS LITIGATION THIS IS THE SIN THAT SENT GOD A PACKING HOLLA 👋!!

[@cokerelijah]

TOO MANY WORDS

[@mehbubarumpa9929]

You talk too much. Try to be more specific. We are here to save some time, not to waste

[@MStalwarts]

don't study medicine, too many words for you..

[@triatomic5703]

you have too many periods in your sentences. He is trying to teach, not to not.

[@northernbear7357]

Medicine isn't the right field for you.