IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => IGCSE/ GCSE => Queries => Topic started by: YogiBeAr on April 25, 2011, 12:24:08 pm

Title: PLZ help!
Post by: YogiBeAr on April 25, 2011, 12:24:08 pm

Hi can someone please explain  the role of ADH i need more info
i would really appreciate it thank you  :)

Title: Re: PLZ help!
Post by: Amelia on April 25, 2011, 12:51:24 pm

ADH (Anti-Diurtetic Hormone) is a hormone used by your kidneys and determines how much water your body retains or excretes. It is made in the hypothalamus (homeostasis control center of sorts) and this hormone directly effects blood pressure and body water composition.

Think of ADH as a "save water" signal to your kidneys. It is therefore produced in times of water shortage, but not when there is plenty of water in the blood.
So, when there is a shortage of water the pituitary gland increases the production of ADH, and when there is a large concentration of water, ADH production is lowered.

Title: Re: PLZ help!
Post by: YogiBeAr on April 25, 2011, 01:39:03 pm

thank you so much :)