The immune system.
This inservice describes the basic components and actions of the immune system, whose activity is necessary for the body to protect itself against invasions of infectious diseases, parasites, cancers, viruses and more. When one reads about such diseases and how they break down the body's defenses, specific references are made to the immune system. For a better understanding of the diseases confronting us in today's healthcare environment, one needs to become familiar with the immune system.
D006801:Humans; D007107:Immune System; D007318:Inservice Training; D014481:United States