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Structure
Interesting Questions, Facts and Information
- There are a total of 10 general entries.
Special Topics
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 Interesting Questions, Facts, and Information
 Immune System
White . A monocyte is a white blood cell found in lymph nodes, the spleen, and bone marrow. It is a phagocytic cell that engulfs and kills bacteria and plays a role in killing tumor cells.
Spleen. The spleen is located in the upper left quadrant of the abdomen, behind the stomach. Red blood cells are filtered through the spleen, where old blood cells are destroyed.
| What common allergic disorder was named for the illness first described in those exposed to the farmlands of England? | The Immune System
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Hay fever. It was originally called 'farmer's lung' and was caused by an allergic reaction to the fungi and spores in the hay.
| What is a substance that can cause a person to become sensitive to, and produce antibodies against it? | The Immune System
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Antigen. A complement destroys dangerous {cells;} humor is watery fluid {in;} the {body;} thymosin is a hormone found in the thymus gland.
Acquired active immunity. In acquired active immunity, antibodies are produced that protect the body upon second exposure.
Feet. Lymph nodes provide one of the most important defense mechanisms for the body.
immunologist . The emergence of AIDS in the 1980s has prompted extensive research and an expanded understanding of the immune system.
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