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26 Cards in this Set
- Front
- Back
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List 4 nonspecific chemical defenses;
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1.lysozyme
2.lactic acid and electrolytes of sweat 3.skins acidic ph and fatty acids 4.stomach HCL acid |
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Lysozyme found in tears and saliva hydrolyzes the peptidoglycan in certain bacterial cell walls. TRUE/FALSE
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TRUE.
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This body region is protected by fatty acids, acidic pH, lactic acid and a tough cell barrier with its own normal flora;
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skin.
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The blood cells that function in allergic reactions and inflammation, contain peroxidases and lysozyme, and particularly target parasitic worms and fungi are...
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eosinophils.
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The least numerous of all WBC, that release histamine during inflammation and allergic reactions are...
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basophils
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Plasma cells produce and secrete antibodies. TRUE/FALSE
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TRUE.
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List 4 characteristics of the reticuloendothelial system.
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1. support a network of connective tissue fibers
2. originates in the cellular basal lamina 3. provides a passageway within and between tissues and organs4. 4. is heavily populated with macrophages |
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The lymphnodes have the function of filtering pathogens from the blood. TRUE/FALSE
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TRUE.
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These cells comprise 20-30% of circulating WBCs and are the cells that function in the body's immune system.
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lymphocytes
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The most numerous WBCs, that have multilobed nuclei and are very phagocytic are...
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neutrophils
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Comprise 3-7% of circulating WBCs, are phagocytic, and can migrate out into body tissues to differentiate into macrophages.
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monocytes
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The lymphoid tissues of the b.intestinal tract are collectively referred to as...
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GALT
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Match the following;
a. interferon, alpha and beta b. interleukin 2- c. serotonin- d. TNF- |
a. inhibits viral replication
b. stimulate T cell mitosis and b cell antibody production c. causes smooth muscle contraction d. increases chemotaxix and phagocytosis |
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Histamine, serotonin and bradykinin are all...
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vasoactive mediators
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When opsonization accompanies phagocytosis, this process involves...
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antibodies or complement coating the microbial cell surface
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Complement can be composed of 20 blood proteins. TRUE/FALSE
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TRUE
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The membrane attack stage of the complement cascade involves...
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a ring shaped protein that digests holes in bacterial cell membranes and virus envelopes
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Specificity and memory are associated with which body defense mechanism?
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B/T cells
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The main function of the RES, is to provide...
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a connection between tissues and organs
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The granules of neutrophiles contain...
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digestive enzymes
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The granules of eosinophils contain...
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lysozyme
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Basophils contain histamine. TRUE/FALSE
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TRUE
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Fever can stimulate hematopoiesis. TRUE/FALSE
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TRUE.
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Macrophages, neutrophils and eosinophils are the proper order of phagocytic activity. TRUE/FALSE
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TRUE.
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The________ region of a lymphnode has germinal centers packed with T and B lymphocytes.
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cortex
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During inflammation, a high neutrophil count is a common sign of bacterial infection. TRUE/FALSE
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TRUE
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