Water Regulation by Antidiuretic Hormone (ADH)

Water Regulation by Antidiuretic Hormone (ADH)/ Antidiuretic Hormone animation/Antidiuretic Hormone mechanism/Antidiuretic Hormone physiology/Antidiuretic Hormone function

The hypothalamus produces a polypeptide hormone known as antidiuretic hormone (ADH), which is transported to and released from the posterior pituitary gland. The principal action of ADH is to regulate the amount of water excreted by the kidneys. As ADH (which is also known as vasopressin) causes direct water reabsorption from the kidney tubules, salts and wastes are concentrated in what will eventually be excreted as urine. The hypothalamus controls the mechanisms of ADH secretion, either by regulating blood volume or the concentration of water in the blood. Dehydration or physiological stress can cause an increase of osmolarity above 300 mOsm/L, which in turn, raises ADH secretion and water will be retained, causing an increase in blood pressure. ADH travels in the bloodstream to the kidneys. Once at the kidneys, ADH changes the kidneys to become more permeable to water by temporarily inserting water channels, aquaporins, into the kidney tubules. Water moves out of the kidney tubules through the aquaporins, reducing urine volume. The water is reabsorbed into the capillaries lowering blood osmolarity back toward normal. As blood osmolarity decreases, a negative feedback mechanism reduces osmoreceptor activity in the hypothalamus, and ADH secretion is reduced. ADH release can be reduced by certain substances, including alcohol, which can cause increased urine production and dehydration.

[madsm]

Finally one covering all the important points, thank you!!!!

[Dz_]

I watched Dr Najeeb's explanation of this right before coming here, and I couldn't help but notice all the similarities. Any chance you are/were a student of his?
Anyway great vid👍

[rachealsuccess]

This was so informative
Finally I got to understand the secret need and uses of you very much

[Angle.of.spring]

Thank you so much...video of 6 min gave me a knowledge of 3 lectures❤

[rosenaveja]

This video is very good in understanding ADH, the antidiuretic hormone. I am very glad this comes with subtitles because the instructor has a very strong accent that is hard to understand, also some of the subtitles are incorrect but I figured it out. Putting that aside. He explains it in such a reasonable and comprehensive way that one must understand. This video is the best thus far...even a layperson can get it. I will continue to view this video so I can totally get the picture of how this works.

[Raphael-qlpf]

Love this video!! Saved me for me monthly exam ❤️biology

[pradnyapakhmode]

Thank you for covering all the points👍

[sabitasaha]

Thanks sir it cleared all my doubts 🎉🎉

[PasanBhathiya]

very well done! Which app are you using for this illustrations? 😍 Keep up the good work buddy!

[blairbee]

This helped immensely! Thank you so much

[tyronemoeke]

Can you put subtitles up? the auto generated ones do not pickup on your accent either. Its upsetting because I could tell their was a lot of helpful just I can only understand half of whatever your saying.

[saptarshibardhan]

SO BEAUTIFULLY ILLUSTRATED AND INFORMATIVE. . . !!!

[Sara-iyoz]

wow thank you for such a great well explained video!

[RomanKundys]

Dude, you are doing an awesome job! Thx

[twominuteanatomy]

How do you create such beautiful Illustrations? Which software do you use? Thanks a lot for providing these videos.

[رعدشاكر-جخ]

Thank u very much for this amazing explanation 🌷

[dhanushyagopal]

This is simple and good.Thank you sir..

[LiaLulua]

Thank you so much now I understand it.

[halarefaie]

Great explanation thank you very much!

[noufalmutairi]

Thank you very much! it's a great video and I'll share it with my friends