The Immune System The Immune System The resistive brass is a group of cells, molecules, and tissues that help defend the body against diseases and new(prenominal) damaging invaders. The repellent corpse provides protection against a compartmentalization of potentially damaging substances that can invade the body. These substances include disease-causing organisms, much(prenominal) as bacteria, fungi, parasites, and viruses. The bodys cleverness to resist these invaders is called immunity. A key ingest of the immune system is its ability to destroy foreign invaders go leaving the bodys let healthy tissues alone.
Sometimes, however, the immune system attacks and insurance these healthy tissues. This reaction is called an autoimmune response or autoimmunity. The immune system is sedate of many parts that work unitedly to fight infections when pathogens or poisons invade the human body. Pathogens are disease-causing organisms such(prenominal) as bacteria and viruses. The immune system reacts to foreign sub...If you essential to get a intact essay, order it on our website:
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