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28 Cards in this Set
- Front
- Back
inflammation
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a reaction of the microcirculation characterized by movement of fluid and leukocytes from the blood into extravascular tissues
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edema
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an increase in extravascular fluid
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effusion
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excess fluid in the cavities of the body
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transudate
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edema fluid with a loss of protein content
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exudate
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edema fluid with a high protein content
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serous
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effusion/exudate with absence of cellular response components
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serosanguinous
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effusion/exudate with erythrocytes
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fibrinous
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exudate with large amounts of fibrin from activation of the coagulation system
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purulent
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effusion/exudate with prominent cellular components
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suppurative
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purulent exudate is accompanied by significant liquefactive necrosis
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vasoactive mediators
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cellular components that influence responses of the microvasculature to injury
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platelet
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a peripheral blood component arising from bone marrow that plays a primary role in the initiation and regulation of clot formation
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mast cell
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cell within connective tissue containing receptors for IgE; when stimulated by an antigen, a variety of inflammatory mediators are secreted into extracellular tissues
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complement system
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a group of 20 plasma proteins that are a source of vasoactive mediators and play an important role in host defense against bacterial infection
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anaphylatoxins
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products of complement activation which have potent effects of smooth muscle contraction and vascular permeability
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bacterial opsonization
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the process by which a specific molecule binds to the surface of a bacterium
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cellular recruitment
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the second phase of the acute inflammatory response; involves the accumulation of leukocytes at sites of tissue injury
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chemotaxis
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movement of cells in response to chemicals
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cytokine
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a group of low molecular weight chemotactic (involved in the movement of cells) proteins secreted by cells at sites of inflammation
small secreted proteins which mediate and regulate immunity, inflammation, and hematopoiesis |
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phagocytosis
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the process of recognizing, internalizing, and digesting foreign material or the debris of injured cells
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lysosomal enzymes
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enzymes involved in the intracellular degredation of phagocytosed material
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neutropenia
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an abnormally small presence of circulating polymorphonuclear leukocytes in the peripheral blood
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macrophage
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a pivotal cell in regulating the reactions that lead to chronic inflammation; a source of both inflammatory and immunologic mediators
destroy bacteria, protozoa, and tumor cells. They also release substances that stimulate other cells of the immune system. And they are involved in antigen presentation. |
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plasma cells
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lymphoid cells that are the primary source of antibodies
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lymphocytes
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involved in both humoral and cell-mediated immune responses
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eosinophils
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cells often involved in allergic reactions and parasitic infestations
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epithelioid cells
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macrophages that have undergone characteristic changes in response to chronic inflammation
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leukocytosis
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an increase in the numbers of circulating leukocytes commonly accompanying acute inflammation
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