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CH 16 Adaptive Immun
Ch 16 Adaptive Immunity
Term | Definition |
---|---|
CLONAL SELECTION | The development of specific B and T cells against a specific antigen. |
Adaptive Immunity | A vertebrate’s ability to recognize and then mount a defense against specific invaders and their products. |
ANTIBODIES | Proteins that are made in response to an antigen. |
ANTIBODY DEPENDENT CELL MEDIATED CYTOTOXICITY | The killing of antibody-coated cells by natural killer cells and leucocytes. |
ANTIBODY TITER | This is a reflection of the antibody-mediated humoral response and determines the relative amount of antibody in the serum. |
ANTIGEN | Any substance that causes antibody formation and reacts only with its specific antibody. |
ANTIGEN PRESENTING CELLS | These cells display a single antigen to T cells. |
ANTISERUM | Blood-derived fluids containing antibodies. |
ARTIFICIALLY ACQUIRED ACTIVE | This type of immunity results from vaccination. |
ARTIFICIALLY ACQUIRED PASSIVE | This type of immunity involves the transfer of preformed antibodies by injection |
Autoantigens | Self-antigens |
B CELLS | These cells manufacture specific antibodies. |
CELLULAR IMMUNITY | Immune response mediated by T cells. |
CHEMOKINE | A cytokine that induces, by chemotaxis, the migration of leukocytes into infected areas. |
CYTOTOXIC T LYMPHOCYTE | A specialized T cell that destroys infected cells presenting antigens. |
Endogenous antigens | Produced when protozoa, fungi, bacteria, and viruses reproduce inside a body’s cells. |
EPITOPES | Antigenic determinants. |
Exogenous antigens | Include toxins and other secretions and components of microbial cell walls, membranes, flagella, and pili. |
GAMMA GLOBULINS | Immune serum globulins. |
Helper T cells | These cells help to regulate the activity of B cells and cytotoxic T cells during an immune response. |
HUMORAL IMMUNITY | Immune response mediated by B cells. |
IGA | This immunoglobulin is found on mucosal surfaces. |
IGD | This immunoglobulin is present on the surface of B cells. |
IGE | This immunoglobulin is involved in allergic reactions. |
IGG | This is the most abundant antibody in the serum. |
IGM | This immunoglobulin is the first antibody produced in response to the initial infection. |
IMMUNOGLOBULINS | Another name for antibodies. |
INFLAMMATION | A host response to tissue damage characterized by redness, pain, heat and swelling. |
INNATE RESISTANCE | The resistance of an individual to diseases that affect other species and other individuals of the same species. |
Lymph | A colorless, watery liquid similar in composition to blood plasma. |
Major Histocompatibility Complex | A cluster of genes which codes for the major histocompatibility antigens. |
MONOCLONAL ANTIBODY | A specific antibody produced in vitro by a clone of B cells hybridized with cancerous cells. |
MONOMER | The simplest molecular structure of a bivalent antibody. |
NATURAL KILLER CELL | A lymphoid cell that destroys tumor cells and virus-infected cells. |
NATURALLY ACQUIRED ACTIVE | This type of immunity can be obtained by exposure to antigen during daily life. |
NATURALLY ACQUIRED PASSIVE | This type of immunity results from the natural transfer of antibodies from a mother to her infant. |
Regulatory T cells | Previously known as suppressor T cells, also interact with other immune cells and produce different cytokines than helper T cells. |
SECONDARY RESPONSE | Memory response. |
T CELL | A type of lymphocyte that is responsible for cell-mediated immunity |
Primary Response | The slow and limited immune response to a first encounter with an unfamiliar antigen |