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14 Cards in this Set
- Front
- Back
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Mast Cell
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A type of cell found throughout the body that contains histamine and other substances that stimulate vasodilation
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Degranulation
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The release of contents of secretory granules from mast cells or basophils during anaphylaxis.
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Histamine
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A substance released by tissue cells that causes vasodilation, capillary permeability, and smooth muscle contraction.
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Prostoglandins
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A hormonelike substance that is released by damaged cells, intensifies inflammation.
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Systemic Anaphylaxis
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A hypersensitivity reaction causing vasodilation and resulting in shock; also called anaphylactic shock.
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Localized anaphylaxis
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An immediate hypersensitivity reaction that is restricted to a limited area of skin or mucous membrane; for example, hayfever, a skin rash, or asthma.
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Desensitization
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The prevention of allergic inflammatory responses by injecting increased doses of the antigen under the skin
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ABO blood group system
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The classification of red blood cells based on the presence or absence of A and B carbohydrate antigens.
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Rh factor
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An antigen on red blood cells of rhesus monkeys and most humans; possession makes the cells Rh1.
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Hemolytic disease of the newborn (HDNB)
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condition occurs when there is an incompatibility between the blood types of the mother and baby
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Immune Complex
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A circulating antigen-antibody aggregate capable of fixing complement.
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Thrombocytopenic purpura
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bleeding condition in which the blood doesn't clot as it should. This is due to a low number of blood cell fragments called platelets
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Hemolytic anemia
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a condition in which there are not enough red blood cells in the blood, due to the premature destruction of red blood cells.
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Agranulocytosis
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means a failure of the bone marrow to make enough white blood cells (neutrophils). Bone marrow is the soft tissue inside bones that helps form blood cells.
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