Where Is The Immune System Located?
It is the business of the immune system to recognize “self” (the body’s own cells) and “non-self” (an antigen – a virus, fungus, bacterium, or any other cell or piece of foreign tissue). To deal with antigens, the system manufactures specialized cells to recognize infiltrators and eliminate them. Among the primary components of the system are a variety of white blood cells, constituting an intelligence and communication network that helps organize…