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The resistant System      The resistant organisation is a multitude of cells, molecules, and tissues that assist defend the body against diseases and other harmful set uponrs much(prenominal) as viruses and bacteria and toxins. The resistant system provides protection against a admixture of potentially damaging substances that trick invade the body. These substances include disease-causing organisms, much(prenominal) as bacteria, fungi, parasites, and viruses. The bodys ability to resist these invaders is called immunity. A key chemical element of the tolerant system is its ability to destroy contrasted invaders art heading leaving the bodys own healthy tissues alone. Sometimes, when the repellent system attacks and reparation these healthy tissues. This reaction is called an autoimmune answer or autoimmunity.The immune system is composed of many split that work in concert to support infections when pathogens or poisons invade the human body. Pathogens are disease-causing organisms such as bacteria and viruses. The immune system reacts to foreign substances through a series of go know as the immune response. all agent comprehend as foreign by a bodys immune system is called an antigen. In Which the body works to fight it .

and when the body cant fight the attacker or foreign object or attacks itself then we have a problem of immune deficit . Works Cited Direct Essays. tolerant System is the virtually Incredible Part of our Body. DirectEssays.com. DirectEssays.com, (January 01, 2000). Web. 14 Sep. 2012. Clemems DL and MA Horwitz.  1993.  Hypoexpression of study histocompatibility complex molecules on Legionella pneumophila  phagosomes and phagolysosomes.  transmiss! ion and Immunity  Brain, Marshall. How Your Immune System Works. How Stuff Works. 1 April 2000. breakthrough Health. 4 October 2010 <http://health.howstuffworks.com/human-body/systems/immune/immune-system.htm>.If you want to get a full essay, order it on our website: OrderEssay.net

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