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The lymphatic system A circulatory system for fluids returns fluid to the blood removes antigens from the body expose

The lymphatic system A circulatory system for fluids returns fluid to the blood removes antigens from the body exposes antigens to the immune system. How is fluid moved in the lymphatic system? Contraction of skeletal muscles against lymphatic vessels Smooth muscle contraction

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The lymphatic system A circulatory system for fluids returns fluid to the blood removes antigens from the body expose

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  1. The lymphatic system A circulatory system for fluids returns fluid to the blood removes antigens from the body exposes antigens to the immune system

  2. How is fluid moved in the lymphatic system? • Contraction of skeletal muscles against • lymphatic vessels • Smooth muscle contraction • Valves in lymphatic vessels • Breathing • Obstruction of the lymphatic system • leads to edema (swelling)

  3. Lymph nodes • Grouped together at various parts of the body • Filtration • “Immune surveillance” • immune cells are concentrated there • (as is antigen)

  4. Lymphocytes develop in lymph nodes (after • they are formed in the bone marrow) • T cells develop in the thymus and then enter • the circulation • Macrophages “present” (show) the antigen • in the lymph nodes

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