chapter 12 vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| acid | present in skin and vaginal secretions that inhibit bacterial growth
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| acute hypersensitivity | flood of histamines when IgE combines to mast cells
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| allergens | antigen produces abnormal response
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| allograft | tissue graft from unrelated person
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| antibody | protein produced by B cells and attaches to antigens
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| antigen | foreign substance, large molecule no normal in body,provoking response
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| artificially acquired active immunity | vaccine
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| autograft | tissue graft from a different place on one's own body
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| chemotaxis | attraction of phagocytes and WBC to area as result of inflammatory chemicals
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| cilia | sweep dusty mucus toward mouth to prevent it from getting to the lungs
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| complement | lysis microorganisms, enhances phagocytosis by opsonization
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| fever | systemic response caused by pyrogens
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| gastric juice | hydrochloric acid and protein enzymes, destroys things
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| hilus | indented region of lymph node
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| histamine | inflammatory chemical that increases capillary permeability causing swelling
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| humoral immunity | provided by antibodies present in body fluid
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| IgA | baths and protects mucosa
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| IgE | triggers histamine, allergic responses, binds to mast cells and basophils
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| IgG | most abundant, only type that crosses placenta barrier
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| interferon | alerts other non infected cells of invaders, proteins released by viral infected cells
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| lymph node | protects body by removing foreign material, bacteria and tumor cells
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| lymph capillary | microscopic, blind-ended, absorb leaked fluid
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| lymphokine | chemical released by sensitized T cells
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| MALT | tissue acts as sentinel (guard) to protect upper respiratory system and digestive tract
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| medulla | central region of lymph node, contains macrophages
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| memory cell | cell generated during primary immune response and remains in body for long time
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| monokine | chemical such as interlukinI or tumornecrosis factor, produced by macrophages
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| mucus | sticky substance that traps particles in respiratory and digestive tract
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| natural killer cells | contains lysozymes, destroys bacteria
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| naturally acquired active immunity | forms mechanical barrier to prevent pathogens
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| naturally acquired passive immunity | passed from mother to fetus via placenta, also in milk
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| opsonization | cell membranes of become sticky, easier to phagocytize
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| peyers pathces | structures that capture and destroy bacteria to prevent from penetrating intestine
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| phagocyte | cell that engulfs and destroys
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| plasma cell | cell that produces antibodies
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| pus | mixture of dead or dying neutrophils, broken tissue cells, and pathogens
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| pyrogen | chemical secreted by WBC and macrophages causing the body temperature to rise
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| right lymphatic vessel | drains lymph from right arm and right side of head and thorax
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| sinus | dilated channel for lymph
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| spleen | blood resivour
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| suppressor T cell | cells that slow or stop activity of B or T cells
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| thymus | produces hormone (thymosin) and functions in immunity
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| tonsil | traps bacteria of pharynx
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| trabeculae | extensions of capsule extend inward and divide the node into compartments
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| afferent lymph vessel | carries lymph into nodes
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