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Module 5

The Lymphatic and Immune System

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Pathogens

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Pathogens (continued)

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Structures of the Lymphatic System�

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Lymphatic Capillaries

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Lymphatic Vessels

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Lymphocytes

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The Thymus

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Structure of a Lymph Node

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The Spleen

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Lymphoid Nodules

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Tonsilitis

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Peyer’s Patches

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Barrier Defenses

  • The skin
  • Mucous membranes
  • Fluids (sweat, sebum, hydrochloric acid, etc.

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Cells of the Innate Immune System

macrophages

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Phagocytes

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Eosinophils

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Natural Killer Cells

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Interferons

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Complement: Opsonization

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Complement:�MAC

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Inflammation

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Inflammation�You do not need to know any of these specific chemicals except histamine.�I have included this just to give you an idea of the various things that occur�as part of inflammation.

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Antigens

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Immunologic Memory

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T-Cell Receptors

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Class I MHC

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Class I MHC, Infected Cell

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Class II MHC

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Activation and Clonal Selection

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Activation of Helper T Cell

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Activation of Cytotoxic T Cell

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Effector Response of T-Cells

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Effector Response of T-Cells

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B Cell Receptors

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B Cell Activation

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Structure of Immunoglobulins

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Functions of Antibodies

  • Neutralization
  • Agglutination
  • Complement fixation
  • Opsonization
  • Activation of NK cells

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Immunologic Memory