Lymphatic and Immune System

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What is Humoral Immunity?

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A part of the adaptive immune response that involves the production of antibodies by B cells to neutralize pathogens.

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What are Lymphocytes?

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A type of white blood cell that is part of the immune system, including B cells and T cells, which are crucial for the acquired immune response.

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What role do enzymes play in the Gastrointestinal tract?

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Enzymes secreted in the gastrointestinal tract help break down food and eliminate pathogens, playing a significant role in digestion and immunity.

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What is the function of the spleen?

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The spleen filters blood, removes old or damaged blood cells, and helps fight infections.

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What is Cell-Mediated Immunity?

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A type of immune response that involves T cells directly attacking infected or cancerous cells.

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What is Innate Immunity?

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The body's first line of defense against pathogens, consisting of physical barriers and immune cells that respond quickly to infections.

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What are Natural Killer Cells?

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A type of lymphocyte that can kill virus-infected cells and tumor cells as part of the innate immune response.

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What is Phagocytosis?

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The process by which certain immune cells, like macrophages, engulf and digest pathogens.

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What is the difference between Active and Passive Immunity?

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Active immunity is developed through exposure to pathogens or vaccination, while passive immunity is acquired through antibodies from another source, such as maternal antibodies.

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What is the role of Antibodies?

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Proteins produced by B cells that specifically bind to antigens on pathogens to neutralize them or mark them for destruction.