Immune System Components

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What are the primary components of the immune system?
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The primary components are white blood cells, antibodies, the complement system, the lymphatic system, the spleen, the thymus, and bone marrow.
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What is the function of white blood cells in the immune system?
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White blood cells, or leukocytes, are responsible for defending the body against infectious disease and foreign invaders.
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How do antibodies aid the immune system?
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Antibodies identify and neutralize pathogens such as viruses and bacteria.
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What role does the lymphatic system play in the immune system?
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The lymphatic system transports lymph, a fluid containing infection-fighting white blood cells, throughout the body.
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What is the function of the spleen in the immune system?
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The spleen filters blood, stores white blood cells, and helps fight certain kinds of bacteria.
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What role does bone marrow have in the immune response?
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Bone marrow produces the stem cells that develop into red blood cells, white blood cells, and platelets.
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How does the thymus contribute to immune function?
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The thymus is critical for the development of T-cells, a type of white blood cell essential for adaptive immunity.
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What is the complement system?
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The complement system is a set of proteins that work with antibodies and phagocytic cells to clear pathogens from the organism.
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What is the function of phagocytes?
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Phagocytes engulf and digest pathogens and debris in the body.
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What is the role of T-cells in the immune system?
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T-cells are involved in attacking infected or cancerous cells and coordinating the immune response.
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What function do B-cells serve in the immune system?
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B-cells produce antibodies that are used to attack invading bacteria, viruses, and toxins.
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How do memory cells contribute to immunity?
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Memory cells remember past infections and help the immune system respond more rapidly upon re-exposure to the same pathogen.
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What is the function of natural killer cells?
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Natural killer cells are lymphocytes that attack cells infected by viruses or have become cancerous.
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How does the innate immune system differ from the adaptive immune system?
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The innate immune system provides immediate but non-specific defense, whereas the adaptive immune system targets specific pathogens over time.
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What is the role of the mucosal surfaces in immunity?
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Mucosal surfaces like those in the respiratory and digestive tracts trap and neutralize pathogens, preventing them from entering the body.
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