Homeostasis* Hot and Cold

Homeostasis*

Homeostasis:The tendency of an organism or cell to regulate its internalconditions, such as the chemical composition of its body fluids,so as to maintain health and functioning, regardless of outsideconditions. The organism or cell maintains homeostasis bymonitoring its internal conditions and responding appropriately when these conditions deviate from their optimal state. Themaintenance of a steady body temperature in warm-bloodedanimals is an example of homeostasis. In human beings, the homeostatic regulation of body temperature involves such mechanisms as sweating when the internal temperature becomes excessive and shivering to produce heat, as well as the generation of heat through metabolic processes when the internal temperature falls too low. 

http://dictionary.reference.com/browse/homeostasis

If your ever working out on a hot summer day, your body will start to sweat. It does that because it needs to cool the body down. Homestasis controls the body temperature and also helps stable the body's internal environment from the outside world.This is how I understand it: in the summer your body tends to sweat to cool off. And in the winter your body starts to shiver to get warm. There are three interdependent components of control mechanism which are Receptor,Control center, effector. There are also negative and positive feedback from homeostasis. The negative feedback are when glucose levels either get too high or drop. And the positive feedback would be regulation of blood clotting.