Negative Feedback Hemeostasis?

Question

When we are dehydrated, our brain signals us to feel thirsty. The more dehydrated we become, the thirstier we get until we get a drink. Why is this an example of a negative feedback hemostasis

Answer 1

To be concise, because drink quenches the thirst.

Dehydration increases osmolarity.

Hypothalamic osmoreceptors stimulates hypothalamic nuclei to synthesis ADH which is released from the posterior pituitary gland.

This allows increased water reabsorption in the kidney and thirst which follows by drinking water. Increasing volume will decrease osmolarity.

Once the osmolarity returns to normal ADH release is inhibited and so the response had infact terminated the stimulus which started it and keeping the internal  environment constant. This is negative feedback homeostasis.