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31 Cards in this Set
- Front
- Back
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A specific defense responding to particular substances, cells, toxins or proteins, which are percieved as foeign to the body and therefore unwanted or potentially dangerous.
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Immune System
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Is the immune system a specific or nonspecific response?
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Specific
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What line of defense is the immune system?
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Third line of defense
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Explain why the immune system is considered a specific defense?
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The immune system is considered a specific defense because it responds to particular foriegn substances to the body and stimulates the production of unique antibodies to fight off the antigens.
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A specific defense responding to particular substances, cells, toxins or proteins, which are percieved as foeign to the body and therefore unwanted or potentially dangerous.
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Immune System
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Is the immune system a specific or nonspecific response?
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Specific
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What line of defense is the immune system?
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Third line of defense
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Explain why the immune system is considered a specific defense?
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The immune system is considered a specific defense because it responds to particular foriegn substances to the body and stimulates the production of unique antibodies to fight off the antigens.
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Explain why the immune system must distinguish between self and non-self.
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The immune system must distinguish between self and non-self so that it does not attack the cells natural to our body system.
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List the lymphoid structures that form the basic structure within which the immune response can function.
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Lymph nodes, Spleen and tonsils, the intestinal lymphoid tissue and the lymphatic circulation.
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Foreign substances
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Antigens
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Antigens
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Foreign substances
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Antigens activate the immune system to produce...
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matching antibodies
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These activate the immune system to produce matching antibodies.
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Antigens
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How are antigens representing self coded?
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By a group of genes inherited from the parents, called major histocompatibility complex (MHC) located on chromosome 6.
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This cell is critical in the initiation of the immune response.
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Macrophage
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What do macrophages develop from?
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Monocytes
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Large phagocytic cells that intercept and engulf foreign material
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Macrophages
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These large phagocytic cells intercept and engulf foreign material and then process and display the antigens from the foreign material on their cell membranes.
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Macrophages
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After macrophages intercept and engulf foreign material, they then process and display the antigens from the foreign material on their _______ __________.
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Cell membranes
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What is the primary cell in the immune response?
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Lymphocyte
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Mature lymphocytes are termed ____________ cells, cells that have the special function of recognixing and reacting with antigens in the body.
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Immunocompetent Cells
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Cells that have the special function of recognizing and reacting with antigens in the body.
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Immunocompetent Cells
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Which cells mature to become immunocompetent cells?
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Lymphocytes
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What are immunocompetent cells?
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Immonocompetent cells are mature lymphocytes that have the special function of recognizing and reacting with antigens in the body.
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What are the two groups of lymphocytes?
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T lymphocytes and B lymphocytes
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These cells arise from stem cells.
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T lymphocytes
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T cells arise from _____ cells.
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stem cells
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Incompletely differentiated cells held in reserve in the bone marrow and then travel to the thymus for further differentiation and development of cell membrane receptors. T cells arise from these cells.
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Stem cells
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A basic cell that may divide to give rise to a variety of specialized cells.
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Stem cell
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This type of immunity develops when T cells with protein receptors on the cell surface recognize antigens on the surface of target cells and directly destroy the invading antigens.
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Cell mediated immunity
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