Function of Homeostasis

    Homeostasis is a process in which yours body maintains an internal balance in which all of the body parts is functioning and interacting with each other to meet the needs of your body. There are three components that interact which is the Receptor, Integrator, and the Effector. A receptor would be the free nerve ending in the skin, an intergrator would be the brain, and a effector would be a muscle. When homeostasis is not maintained then you become sick, and if it isn't fixed then you will die. Negative feedback of homeostasis is when your body tries to encounter changes. It changes an internal condition back to its normal state. This explains the most common way on how your body regulates itself. It is mostly caused by hormones. An example would be if you are running a race, and then you start to sweat so your blood vessels get closer to the skin which causes a loss of heat. When your blood pressure rises, your heart slows down so this is also an example of negative feedback. Temperature control is another example because the hypothalamus, which monitors the body temperature is capable of determing the slightest variation of normal body temperature.   
      Positive feedback is when your body reacts to a change from the normal state by causing a bigger change. The mechanisms purpose is to push levels out of normal range. A series of events initiates a process that builds to increase the effect of stimulus. A change is detected by the receptors and the information is transmitted to the control centre. An example would be when a blood vessel is damaged, then the chemicals do there job by plugging and repairing the hole. Platelet accumulation causes blood clotting in response to a tear in the lining of blood vessels, is another example that explains positive feedback.


This is a model explaining negative feedback about temperature control.



This is a model explaning the process of positive feedback.