Quizlet Immune System

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  1. A diagnosis of AIDS is made when a person has: Fewer than 200 ml T Cells
  2. A parisite is: a predator that harms an individual by feeding on its host.
  3. Allergy: Inappropriate reaction to a harmless substance
  4. Antibodies protect your body against diseased when exposed to a virus by:: destorying substances that enter the body and cause disease
  5. Antibody: Defensive proteins secreted by plasma cell
  6. Antigen: a substance that stimulates an immune response
  7. Cause of Swelling is:: Histamin releases white blood cells and fluids to the injurred area causing swelling once the cells dial
  8. HIV can be caused from: sexual contact
  9. Pathogen: an organism that causes diseases
  10. The most common means of HIV transmission is: sexual intercourse with a person infected with HIV
  11. The purpose of the immune system is: to protect us from the bacteria, microbes, toxins, viruses, parasites that try to invade our body
  12. What is the role of Helper T Cells: They control the cell mediated immune response
  13. When does HIV begin to reproduce: shortly after infection
  14. Where is the spleen located?: under the left side of the rib cage