When you are getting dehydrated your osmoreceptors release salt into your bloodstream. This make sure that you do not die form lack of water or fluids. It is classified as a chemical receptors. Your blood use water to carry oxygen to your cells. Without osmoreceptors you body would have oxygen in it but your cells will not. Your cells, organ, and tissue use water to keep temperature. Because you lose water through breathing, sweating, and digesting, your osmoreceptors active so you consume water. When you get not enough water your lips and tissues will not be moist.