explain tissue-specific effect of infectious disease and role of immune system.
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Answer:
The immune system orchestrates a potent defense that consists of the production of specific antibody molecules and lymphocytes capable of reacting with and inactivating foreign agents, either directly or indirectly through the involvement of molecular and cellular inflammatory processes. The importance of the immune system to our survival in the face of the wide variety of disease-causing agents is tragically demonstrated by the devastating consequences of the immunological impairment of acquired immune deficiency syndrome (AIDS) and of congenital immunological deficiencies such as severe combined immunodeficiency (SCID) in infants. On the other hand, the enormous power of the immune system as a protection against pathogenic agents carries with it the price that the action of the system may lead to or exacerbate a series of immunological diseases, including systemic lupus erythematosus, rheumatoid arthritis, and type I diabetes (juvenile onset).
The immune system is composed mainly of lymphocytes and macrophages. The cells of the immune system are found in the blood and lymph, where they are in a recirculating pool, and in the spleen, lymph nodes, and lymphoid tissues associated with the gastrointestinal tract, the brochopulmonary tree, and mucosal surfaces. Lymphocytes and macrophages develop in the thymus and the bone marrow.
Answer:
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