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11 Cards in this Set
- Front
- Back
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Antigen
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Foreign proteins in the body or a substance capable of inducing the formation of antibodies |
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Antibodies
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Immuglobulin a protective protein substance produced in the body to counteract antigens |
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Immunity |
Two Types: Active Passive |
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Active
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Host produces its own antibodies in response to natural antigens (infection) or artificial antigens (vaccines) |
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Passive |
The host receives natural (nursing mother) or artificial (an injection of immune serum) antibodies produced by another source |
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Antibody- Mediated Defenses Humoral (circulating) Immunity |
Resides in B lymphocytes and mediated by antibodies produced by B lymphocytes |
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B Cells
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They can differentiate into plasma cells which secrete antibodies The antibodies initiate a variety of elimination processes |
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IgM |
Shows a current infection |
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IgG |
Indicates a past infection |
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Cell Mediated Defenses- Cellular Immunity |
When the T cell are exposed they release large # of T CELLS BECAUSE OF THE RELEASE OF LYMPHOKINES |
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THREE types of T Cells |
2. Cytotoxic T cells- Attack and Kill Microorganisms 3. Suppressor T cells- Suppress the helper and cytotoxic cells *T cells also stimulate the production of B cells |
