Term
| What is the primary function of the lymphoid system? |
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Definition
| production, maintenance, and distribution of lympohcytes |
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Term
| The lymphocytes are most important in? |
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Definition
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Term
| Where are lymphocytes produces? |
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Definition
| Red bone marrow, peripheral lymphoid tissue, and thymus |
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Term
| Lymphatic vessels commonly occur in association with |
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Definition
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Term
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Definition
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Term
| Why are T cells called "T" cells? |
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Definition
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Term
| ___ are large lymphoid nodules that are located in the walls of pharynx? |
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Definition
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Term
| ____ are clusters of lymphoid nodules deep to the epithelial lining of the small intestine? |
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Definition
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Term
| Lymphoid organs differ from lymphoid tissues in what way? |
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Definition
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Term
| Dividing lymphocytes can be found in the____ of the lymphoid nodules |
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Definition
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Term
| Leslie has a bad sore throat, and the lymph glands in her neck are swollen. What does this indicate? |
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Definition
| The affected lymph nodes contain an increased number of lymphocytes |
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Term
| Areas of the spleen that contain large aggregations of lymphocytes are known as? |
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Definition
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Term
| The first line of cellular defense against pathogens are the ? |
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Definition
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Term
| The cells that perform immunological surveillance are the ? |
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Definition
| NK (natural killer) cells |
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Term
| An inflammatory response is triggered when ____ cells release histamines and heparin. |
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Definition
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Term
| A sample of John's blood shows a high level of pyrogens. This would indicate that john___________. |
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Definition
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Term
| Immunity that is genetically determined and present at birth is called? |
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Definition
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Term
| Immunity that results from exposure to an antigen in the environment is called |
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Definition
| naturally acquired active |
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Term
| Immunity that results from antibodies that pass the placenta from mother to fetus is called? |
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Definition
| Naturally acquired passive |
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Term
| What are/is the role of antigen-presenting cells in immunity? |
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Definition
| Activate T cells, display antigen fragments, process antigens, bind to antigens |
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Term
| When an antigen is bound to Class I MHC molecules, it can stimulate a ____ cell. |
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Definition
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Term
| The cells responsible for antibody-mediatd immunity are the_____ cells. |
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Definition
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Term
| The cells directly responsible for cell-mediated immunity are the______ cells. |
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Definition
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Term
| In an experimental situation, a rabbit is exposed to a viral antigen to which is makes antibodies. These antibodies are then purified and injected into a human with the same viral disease. This is an example of______. |
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Definition
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Term
| Lymphocytes that destroy foreign cells or virus-infected cells are ____ cells. |
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Definition
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Term
| Cells that help regulate that antibody-mediated immune response are _____ cells. |
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Definition
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Term
| B cells are primary activated by the activities of ____ T cells |
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Definition
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Term
| The various classes of immunoglobulins are differentiated on the basis of their_______. |
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Definition
| Heavy-Chain constant segments |
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Term
| Immunoglobulins that are most abundant and are responsible for resistance against many viruses, bacteria, and bacterial toxins are______. |
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Definition
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Term
| Immunoglobulins that attach to an sensitize mast cells and basophils are? |
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Definition
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Term
| Immunoglobulins, formed of five subunits, that are the first antibodies to be produces in response to infection, are ? |
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Definition
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Term
| Immunoglobulins that are primarily found in glandular secretions such as saliva and tears are____? |
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Definition
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Term
| What happens during primary humoral response to antigens? |
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Definition
| B cells may differentiate into plasma cells, B cells may undergo several rounds of mitosis before producing plasma cells and memory cells, antibody levels do not peak until 1 to 2 weeks after initial exposure, the first immunoglobulins to appear in circulation are of the IgM type. |
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Term
| In routine examination, some blood is taken and analyzes. The results show a high IgM titer for mumps virus but a low IgG anti-mumps titer. This would indicate that the person.... |
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Definition
| recently infected with mumps. |
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Term
| A crime scene investigator found that a biological fluid sample contains a large amount of IgA-type antibody. This fluid is probably.... |
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Definition
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Term
| Inappropriate or excessive immune responses to antigens are__? |
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Definition
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Term
| The human immunodeficiency virus (HIV) that causes the disease known as AIDS selectively infects ____ cells. |
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Definition
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