Exploring the Lymphatic System

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What is the lymphatic system?

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The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste, and other unwanted materials. It plays a crucial role in the immune system by transporting lymph, a fluid containing infection-fighting white blood cells.

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What is the primary function of the spleen?

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The spleen filters blood, recycles iron, and helps produce white blood cells. It is often referred to as the 'Immune System Guardian' because it helps fight infections.

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What are lymph nodes?

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Lymph nodes are small, bean-shaped structures that filter lymph fluid and trap pathogens, such as bacteria and viruses, to help the body fight infections.

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What are B-cells?

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B-cells are a type of white blood cell that produce antibodies to help the body fight infections and diseases.

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What is the role of T-cells in the immune system?

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T-cells are a type of white blood cell that play a central role in cell-mediated immunity, helping to destroy infected or cancerous cells.

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What is lymph?

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Lymph is a clear fluid that circulates through the lymphatic system, containing white blood cells, proteins, and waste products.

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What is the thoracic duct?

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The thoracic duct is the largest lymphatic vessel in the body, responsible for draining lymph from the lower and left side of the body into the bloodstream.

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What is the difference between active and passive immunity?

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Active immunity occurs when the body produces its own antibodies in response to an infection or vaccination, while passive immunity is provided when antibodies are transferred from another source, such as from mother to baby.

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What are pathogens?

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Pathogens are microorganisms that can cause disease, including bacteria, viruses, fungi, and parasites.

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What is the function of macrophages?

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Macrophages are large white blood cells that engulf and digest pathogens and cellular debris, playing a key role in the immune response.