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Antigenicity depends on ?
chemical structure, foreignness, complexity
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APC's are:
marcophages (antigen presenting )
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When the anigen binds to its appropriate antibody:
aggluntination, phagocytosis, and antigen neutralization may all occur
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Antibodies are produced by:
plasma cells
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An immunoglobulin contains?
two heavy and two light polypeptide chains
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The antibody class having the highest concentration in the blood is :
IgG
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Which antibody is matched with its appropriate role
IgM/ first to challenge the antigen
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The primary immune response involves
a latent period followed by peak antibody production
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Which cells are phagocytic??
Marcophages
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When a child develops measels and aquires an immunity to subsequent infections, the immunity is:
aquired and active
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What is adaptive immunity ?
is a state of protection, primarily against infectious agents, that differs from infalmmation by being slower to develop, being more specific, and having memory that makes it much longer lived.
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Natural Immunity and Aquired:
innate resistance (natural) and gained from birth (aquired)
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What are antigens?
are molecules that react with components of the immune response , such as antibodies and receptors on B and T cells. Most antigens can induce immune response, and thus the antigens are also immunogens
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What is self-tolerance?
are antigens on an individual's own cells in which the immune system does not normally recognize as immunogenic
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What is Humoral immune response:
is provided by molecules (antibodies) produced by B cells.
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What are antibodies?
they are plasma glycoprotiens that can be classified by chemical structure and biologicactivity as IgG, IgA, IgM, IgE, IgD
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T-Cells?
are responsible for the cell-mediated immune responses
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Types of T-Cells?
cytotoxic T cells (Tc), regulatory T cells, including T helper (Th), and T suppression (Ts), and memory cells
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How does a T Cell respond?
they have antigen specific receptors that must see antigen presented on cell surgaces by special antigen-presenting molecules of the major histocompatibility complex (MHC)
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What depends on teh cell-mediated or humoral immune responses?
thepopulation of Th cells
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