Immune Review

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What is the primary function of white blood cells?

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White blood cells are responsible for defending the body against infections and foreign invaders.

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What is artificial active immunity?

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Artificial active immunity is immunity gained through vaccination, where the body produces its own antibodies in response to a vaccine.

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What are phagocytes?

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Phagocytes are a type of white blood cell that engulfs and digests pathogens and debris.

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What are lymphocytes?

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Lymphocytes are a type of white blood cell involved in the adaptive immune response, including B cells and T cells.

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What is the role of antibodies in the immune system?

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Antibodies are proteins produced by B cells that specifically target and neutralize pathogens.

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How does HIV affect the immune system?

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HIV attacks and weakens white blood cells, specifically helper T cells, impairing the immune system's ability to fight infections.

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What is the difference between innate and adaptive immunity?

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Innate immunity is the body's first line of defense, providing immediate but non-specific responses, while adaptive immunity is a slower, specific response that develops over time.

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What are antigens?

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Antigens are substances that trigger an immune response, often found on the surface of pathogens.

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What is the function of T cells in the immune response?

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T cells are involved in directly killing infected host cells, activating other immune cells, and regulating the immune response.

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What is the significance of vaccinations?

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Vaccinations stimulate the immune system to develop memory against specific pathogens without causing the disease.