1 Mites live naturally on dogs, but any mite in sufficient quantity can cause skin problems.  Two common types of mites that can cause mange are Demodex canis, which causes demodectic mange, and Sarcoptes scabei, which causes sarcoptic mange.
Ad. One area in which osmoreceptors are found is in the brain, specifically inside the hypothalamus. They regulate the amount of vasopressin, a hormone which tells the kidneys to retain water, which is expressed by the hypothalamus.
Osmoreceptors are cells which are sensitized to osmotic pressure. Osmotic pressure changes with the concentration of solutes in the body. Using osmoreceptors, the body regulates its fluid balance to keep the balance of fluids stable and safe so that the body's numerous interconnected systems will retain functionality.