SGU SVM Immunology
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Body defenses that protect againts disease
Types of Defense
- 1) Physical Barriers
- 2) Innate Immunity
- 3) Acquired Immunity
- 4) Passive Immunity
Chemicals and Cells
Can recognize foreign invaders with specificity, destroy them, and retain the memory of the specific encounter.
Which two forms of Acquired Immunity communicate with each other?
Humoral Immunity and Cell-Mediated Immunity
Targets invaders outside of cells via B-lymphocytes
Cell Mediated Immunity
Targets cells of the body that are infected with Intracellular pathogens via T-lymphocytes
Dysregulations of the Immune System
- 1) Hypersensitivities
- 2) Autoimmunity
- 3) Immunodeficiencies
- 4) Neoplasia of Immune System
Phagocytic Cells of the Innate Immune System
Natural Killer Cells
Don't recognize the antigen, they recognize infected cells by other mechanisms
Soluble Defense Factors
- 1) Enzymes
- 2) Defensins
- 3) Interferons
Cause damage to membranes
Cytokines that can interfere with viral replication
Proteins that mediate cellular interactions and regulate cell growth and secretion.
Group of serum and cell surface proteins that can be activated by both innate and acquired immune mechanisms and result in a variety of biological events.
- 1) Cell Lysis
- 2) Chemotaxis
- 3) Opsonins
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