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Aldosterone and ADH | Renal system physiology | NCLEX-RN | Khan Academy

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Find out how Aldosterone and ADH cause changes in volume and osmolarity. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi
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23 сен 2012

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Комментарии : 85

@andres111962 6 лет назад

ADH (retains water): causes the kidneys to retain (hold) water. When blood volume decreases and increased serum osmolality . Water retention boosts blood volume and decreases serum osmolality. Aldosterone (raises B/P, volume, sodium, water): it is released by the adrenal cortex. When blood pressure, blood volume, sodium, or water is low. aldosterone is increased. First, it goes throw steps: the nephron in the kidneys secrete renin which travels to the liver which makes angiotensin I, angiotensin I then travels to the lungs where it is converted to angiotensin II, which then travels to the adrenal glands to produce aldosterone.

@yasmine7305 5 лет назад

Your comment was really helpful!!

@stephenprice3357 5 лет назад

Learned more from u than this entire video

@ChunkyBoi11 5 лет назад

This comment is better than the entire god damned video. Kudos to you.

@simbelmyna 5 лет назад

That is not entirely correct. ADH is responsible primarily for retention of H2O in attempt to regulate osmolarity. For example, you eat a meal which has more salt than you need and the osmolarity increases. Therefore, the ADH is produced and we experience the stimulus to drink. The osmolarity is then regulated and comes back to the normal level. But as you regulate osmolarity, the consequence will be the change of the volume of fluids (because you drank and ADH caused retention). So now other hormones that regulate the volume come into play (since the increase in extracellular volume will increase blood pressure the production of renin and consequentiely angiotensin II and aldosteron is inhibited, therefore sodium is no longer reabsorbed as muvh) which will cause the loss of extra volume through urination. Basically, regulation of osmolarity and volume are in close connection but are not regulated through same hormones. Osmolarity is regulated through ADH (water) which happens on account of change in the volume which is then regulated through renin and others (sodium) listed above.

@user-em4wh5ji3w 5 лет назад

This is basically what you need to know

@khanacademymedicine 11 лет назад

More Aldosterone would help retain sodium and water (in equal parts) so this should not change osmolarity which is the main thing that affects ADH levels.

@alessandrobroli5691 2 года назад

Thank you so much ! I have been struggling with understanding the Aldosterone, ADH interaction for so long. But you made it so simple ! Thank you thank you thank you !

@XuchiwaX 10 лет назад

HI!! I'm french but I can understand english, and I'm so lucky I can, because those videos are awesome !!! I can never find good explanations for my medicine school things. That's absolutely amazing that you give your time to spread knowledges ! uninteresting boring things become so fascinating !

@AisleLoveYew 10 лет назад

dinosaurtattoo whoa man... have a mars bar... You're not yourself when you're hungry. *medicine *uninteresting

@XuchiwaX 10 лет назад

Let me ask why you need to be sarcastic about me congratuling some good job ? I used to find it uninteresting and boring because my lessons were ! my teachers were, that's why I was looking for an other support to learn on, I decided to learn more by myself than just focussing on what I wrote in class. If I wasn't interested in it, why would I bother looking on internet to understand more ? I don't often comment on youtube and you just proove I shouldn't, since hate like to be spread so easily

@iananderson4929 9 лет назад

dinosaurtattoo dude woah chill.

@adrien1234ist 8 лет назад

+tambalpaw adri ils se sont fait violés par leur ere quand ils avaient 3mois

@amounanina8642 7 лет назад

same her man

@drsairamemon4058 8 лет назад

thank you so much for all these lectures on RAAS. finally i understand what RAAS is.

@mynnzero 9 лет назад

wonderful, thank you

@syedghazi9727 7 лет назад

stay happy with best of health great teachers found here ,👍👍👍

@a.s.america 6 лет назад

Not being a hater but an honest responder and subscriber. The way this guy explains that is really hard to get. This's the second video I'm watching here on this topic and can't get a thing

@ghdsds 7 лет назад

Great video!!

@Daniel2DeeD 9 лет назад

Very nice Video! Thanks a lot! Made my day and saved my exam :D

@nellyhoffman6194 8 лет назад

Thank you brother RISHI

@Noharm97 8 лет назад

Very Nice!!

@mohammedmahmmod4462 7 лет назад

well thank u sir for explained very well

@laithshb97 11 лет назад

Great job :)

@MrShakeelqazi1 9 лет назад

Nice!

@MrsSophia01 9 лет назад

Super Video!! :)

@dwightsbeats4274 7 лет назад

What system, apps, or programs do you use to make and record your videos?

@anandsingh4071 6 лет назад

he confused me😂😂

@bunsentheburner1635 3 года назад

NaBrO

@maisalsayed5766 11 месяцев назад

Much appreciated

@pammypam147 8 лет назад

Thanks a lot!! :-))

@samokk9145 5 лет назад

Thank you 👌👌👌👌

@yukiyukiko2250 4 года назад

I study in french but believe me ur video helped me to get "hyponatrémie de dilution" more than a thousand videos in french XD .... Thank you so muuch u really made me happy hhh

@yukiyukiko2250 3 года назад

@@huzaifaabedeen6509 thank you I corrected it

@robynnordeen4581 8 лет назад

excellent

@lyrablack8621 3 года назад

Thanks!

@AisleLoveYew 10 лет назад

I have a question.. I thought sodium is taken in for exchange of potassium. Would the osmoles in the blood be very much affected?

@HafizahHoshni 8 лет назад

thanks

@kevinpierson1200 7 лет назад

Interesting wen broke down to ninth grade algebra a numerator and denomenator fraction. ADH is that simply illustrated and is a trait that mirrors the illustration.

@JoelT23 11 лет назад

Would you say that if you increase the blood concentrations of aldosterone, less ADH will be released?

@learninglearning1262 4 года назад

Thank you

@flsun722 4 месяца назад

Ok, and if someone has high BUN and high BUN/CREATINE and High dehydration and high SHBG ( Aldosterone) …what they need to do in order to correct those issues? Thanks

@kamanashisroy 4 года назад

So, how can I explain diuretic like Coffee decreeses aldosterone

@arakhshani 8 лет назад

I am confused. I thought the body uses sodium to reabsorb water back into the blood stream because it is difficult to use channels or pumps to do it. But here, in case of ADH, you say water is channeled directly from filtrate into the blood stream. Could you please elaborate on the nature of those channels and how they work? (i.e. are they pumps? do they use ATP? how transfer of other molecules are prevented through these channels?) I like to take this opportunity to sincerely thank you for your videos. You have a unique ability to explain complex issues in a very simple and understandable manner.

@RICKENBOCKEN 8 лет назад

+MorningStar In physiology we call the channels that transport water as aquaporins. As I understand them in reference to the kidneys is they are channels inserted into the CD to permit the diffusion of water via osmosis. So this is passive transport through inserted protein channels.

@mtnmedics359 7 лет назад

Sir...Is it possible passive transport to cause water move without any concentration difference??

@HeyImLucious 7 лет назад

Water almost always moves via osmosis, which is essentially passive transport (so high concentration to low). However, due to water's charge, it is attracted to salt. So if you reabsorb sodium, water near the sodium will follow ("water follows salt" is a good thing to just memorize). Another way is through aquaporins. If water can't normally cross a membrane (or isn't crossing in large enough quantities) then adding aquaporins is essentially creating holes for the water to get through. tl:dr- ADH drills holes in the membrane so water can escape Aldosterone causes salt to be reabsorbed and water *will* follow salt (specifically Na+ in this case, but water follows all salts).

@venok8863 7 лет назад

wow, thank you for the clarity.... Was really confused too but now I am okay.

@aslanpro5249 5 лет назад

Aldesterone hormone in my mother 353 my mother 47-year-old aldwsteron high palpitations very high, for example, fatigue and fatigue. potassium 4.5 aldesteron value is good🤓🤓🤓🤓

@katiie7 4 года назад

Would taking potassium lower either of these levels?

@petersekhon9492 11 лет назад

One question, it may be a bit off topic: When we look at the medullary concentration gradient of the kidney and role the vasa recta play in maintaining that concentration, why does the vasa recta plasma leave slightly hypertonic when leaving the medulla. I know the speed of blood flow doesnt allow proper equilibrium to be acheived...but what significance it the hypertonic plasma. Is it that the more hypertonic plasma will allow increase water reabsorption in other parts of the body...confused

@ye1o881 2 года назад

9 years later. You ever get your answer?

@threeMetreJim 4 года назад

Sounds almost like what might happen with covid-19. ADH up, Aldosterone unchanged -> Osmolarity down (more dilute).

@DoctorSpicy 10 лет назад

EUREKA...HE TEACHES MORE MEDICINE THAN THE PALE AND FRAIL OF US MEDICAL SCHOOLS!!! LMFAO

@JustinMorgan105kg 6 лет назад

You've obviously never been to medical school.

@alial-ahdal6036 8 лет назад

THANK YOU TEACHING

@user-vx3pg5xs4l 8 лет назад

Thank you so much may Allah bless you ^_^

@caribaez5711 6 лет назад

@hak8755 4 года назад

Wow

@Rantsnrambles808 6 лет назад

If they aren't able to cross the membrane, why is the arrow showing that they are?

@faleshamccoy9777 5 лет назад

they cant on their own, they're being carried by sodium essentially

@nur7688 4 года назад

yks öğrencisiyim inşallah bu sene tıp kazanırım thanks for the video 🙏

@harikrishnankalakkal 3 года назад

Osmolarity of blood or urine ?

@mmaggi05 11 лет назад

you have a good way of teaching, I am just wondering what did you get on the MCAT

@user-kw2ng1pt3b 4 года назад

why you dont add Arbic

@sannatariq4065 3 года назад

....who’s the guy explaining this? Is he on some social media? What’s his name? 👀

@Someone4ux 2 года назад

we don't study these details so a lot of things i didn't understand them that's so confusing i hate my book

@hadilzawahreh8224 9 лет назад

I love you people

@zaimahbegum-diamond1660 7 лет назад

really confusing.

@adalbertocabrera9999 4 года назад

Cheers for this, I've been looking for "kidney yin deficiency acupuncture points" for a while now, and I think this has helped. Have you ever come across - Aenarter Uncomplicated Assistance - (Have a quick look on google cant remember the place now ) ? It is a great one off guide for discovering how to help your kidney function minus the headache. Ive heard some amazing things about it and my buddy got great results with it.