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. <http://www.howtovanish.com/2010/01/avoid-nosy-surveillance-cameras/>. |
Our immune system is like the surveillence system of our bodies. As Mrs.Gess always reminds us in class, our immune systems are so unique because of their ability to recognize and to distinguish between self and non-self and because of it's memory. In our immune systems we have this protein called Major Histocompatibility Complex (MHC), this protein is divided into two parts, Class 1 MCH and Class 2 MCH. Class 1 MCH is found in all body cells, where as Class 2 MCH is found only in cells that deal with the immune system. Class 2 MCH eat up the bad guys in our bodies and then take a piece of the bad guy and show it off like a trophy. They do this so that the other cells in the body will be able to identify the bad guy. Mrs.Gess used an example of her defetinng Aarron, then she took Aarons sunglasses and put them on illustrating how the Class 2 MHCs defetes the bad guys then shows a piece of them off.
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