A Level Biology Revision (Year 13) "Osmoregulation and Antidiuretic Hormone (ADH)"

In this video we look at osmoregulation and antidiuretic hormone (ADH). First we explore how the secretion of antidiuretic hormone by the pituitary gland is controlled by osmoreceptor cells in the hypothalamus. We then look at how antidiuretic hormone triggers cells in the collecting ducts of the kidneys to reabsorb more water back into the blood. This includes the roles of the second messenger cyclic AMP and aquaporin proteins. Finally, we look at how osmoregulation is an example of negative feedback.
Image credits:
Hypothalamus
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No machine-readable author provided. Jomegat assumed (based on copyright claims)., CC BY-SA 3.0 creativecommons..., via Wikimedia Commons
Pasta
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VinRock80, CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
Cola with ice
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Simon Cousins from High Wycombe, England, CC BY 2.0 creativecommon..., via Wikimedia Commons
Toilet
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Bodhi Peace, CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
Sweat
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Phil Scoville from Orem, UT, USA, CC BY 2.0 creativecommon..., via Wikimedia Commons

[@brandonhughes5554]

You saved both my GCSE and A levels

[@あああああ-t3b3u]

This is so timely I have just learned this topic in my school and get lost, thank you sm sir!!

[@estherxmed]

Thank you for the video. I will be using it for my revision this year.

[@Lucy-nw4im]

Return of the King!

[@kimchichi2125]

Thank you so much

[@user-fizz-r6y]

Sir your videos really helped me in year 12 I wanted to ask you that when will year 13 bio videos will be complete

[@Honeyxsoph]

Hi! I’m a big fan it’s a pleasure to be first to comment love ur channel pls pin ❤

[@Hk-gn4hs]

tha goat

[@donkeywithacigar2621]

I love you shaun

[@aidan-h5b]

what did the cell say to the ADH hormone? stop being so clingy ur making me hold onto all this water