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Chapter 14 (14.1-14.2 (Are large lymphoid nodules that are located in the…
Chapter 14
14.1-14.2
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Lymphoid organs are different from lymphoid tissues in that lymphoid organs are separated from surrounding tissues by fibrous capsule and lymphoid tissues are not.
In general, lymphocytes ALL OF THE ABOVE spend little time in the blood, have a relatively long life span, and are not evenly distributed in the lymphoid tissues.
The spleen ALL OF THE ABOVE is the largest lymphoid organ, contains nodules similar to other lymphoid nodules, contains lymphocytes,
Lymph nodes B and C only (B) monitor the contents of lymph by removing debris and pathogens and (C) act as a check station for cancer cells
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The two collecting ducts that drain the lymphatic trunks are the thoracic duct and right lymphatic duct
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The primary function of the lymphoid system is production, maintenance, and distribution of lymphocytes
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The lymphoid system is composed of ALL OF THE ABOVE
lymphatic vessels, lymph nodes, the spleen
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The role of the spleen is slightly different than another lymph organs because it also filters blood
14.5-14.6
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The binding of n antigen to an antibody can result in ALL OF THE ABOVE neutralization of the antigen, agglutination or precipitation, complement activation, destruction of the antigen
Immunoglobulins that attach to mast cells and basophils and are involved in allergic reaction are IgE
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Immunoglobulins that are the largest class and are mainly responsible for resistance against viruses, bacteria, and bacterial toxins are IgG
Antibodies cause which of the following reactions? ALL OF THE ABOVE agglutinations, precipitation, neutralization, opsonization
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In order for a lymphocyte to respond to antigen, the antigen must bind to specific receptors on the lymphocyte membrane
This immunooglobulin is responsible for defense against many viruses, bacteria, and bacterial toxins. IgG
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The chemical mediators responsible for killing tumor cells, stimulating T cell activity, and inhibiting parasites and viruses are termed tumor necrosis factors
The major histocompatibility complex (MHC) is a membrane protein that can reconize foreign antigens.
This class of chemical mediators stimulates the production of both microphages and monocytes. GM-CSF
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14.4
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In active artificial immunity, the body makes a memory of the attack
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Immunity that results from antibodies ingested from breast milk is which type of immunity? Passive natural
Newborn infants gain most of their immunity from antibodies passed from the mother across the placenta
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In an experimental situation, a virus is injected into a rabbit and the rabbit is allowed to make antibodies for the viral antigen. These antibodies are then removed from the rabbit plasma and injected into a human to help deal with the same viral disease. This would be an example of active immunization
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Blocking the antigen receptors on the surface of lymphocytes would interfere with antigen recognition
14.3
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Interferons may be described as ALL OF THE ABOVE products of activated lymphocytes and macrophages, antiviral substance, an example of cytokines, coordinator of local defense activities
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The body's nonspecific defenses include ALL OF THE ABOVE skin, complement, interferon, inflammation
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Major events associated with inflammation include redness, swelling, heat, and pain
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