How does the hormone ADH control urine output?

ADH is a hormone that decreases the urine output in humans. It is produced by the hypothalamus and secreted by the posterior pituitary gland. The production is controlled by osmoreceptors and baroreceptors in the hypothalamus.

When there is excess water intake there is a decrease in ADH production - this is an example of a negative feedback loop. This means that less aquaporins are placed into the collecting duct of the nephrons within the kidney; leading to increased urine production.