To determine: The kind and characteristics of the syndrome present in the young boy who had a dozen of bacterial and viral infection in the past years.
Introduction: The primary function of the immune system is to protect the body from foreign substances. However, various conditions may disturb the functioning of the immune system. The failure of the immune system may lead to the prevalence of the various viral and bacterial infection.
To determine: The component of a two-part immune system that is not functional.
Introduction: The primary function of the immune system is to protect the body from foreign substances. However, various conditions may disturb the functioning of the immune system. The failure of the immune system may lead to the prevalence of the various viral and bacterial infection.
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Chapter 17 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
- If you are transfusing blood to a hypothetical patient, is it more important that the transfused blood have antigens that will not react with the recipient’s antibodies or antibodies that will not react with the recipient’s antigens? Pick one and briefly explain why.arrow_forwardAll of the following are true of the lymphatic system, EXCEPT: Lymphatic capillaries lie in close physical proximity to arterial and venous capillaries None of the other four answers (all are true of the lymphatic system) Lymph nodes are located at lymphatic vessel junctions It brings microbial antigens into contact with immunologically active cells (lymphocytes and macrophages) Its only important function is to carry interstitial fluid back to the circulatory systemarrow_forwardIf the thymus of an adult experimental animal is removed, the following observations can be made: (a) No immediate effect occurs, and (b) after 1 year, decreases occur in the number of lymphocytes in the blood, the ability to reject grafts, and the ability to produce antibodies. Explain these observations.arrow_forward
- Name the cells which are : (i) double negative T cells (ii) double positive T cellsarrow_forwardWhat is "defined as the structural differences (diversity) observed in the variable domains of antibodies? This is for immunology.arrow_forwardMatch the class of antibody with its appropriate structure/function. 1st choice This dimeric antibody is responsible for localized protection on mucosal surfaces. 2nd choice This monomeric antibody functions is mediating the allergic response. 3rd choice This monomeric antibody presence on B cells functions in initiation of the immune response. 4th choice This monomeric antibody enhances phagocytosis, neutralizes toxins and viruses, and protects fetus and newborn. 5th choice This pentameric antibody is especially effective against microorganisms; first antibodies produced in response to initial infection. IgM| IgD IgE IgA IgG > >arrow_forward
- Correctly order the steps in cellular Immunity. Below is a sequence of events. Place them in the order they should occur, number 1 being the first item. Select the step number from the drop down next to each item. Items to order: a) .Cytotoxic T cell (CTL) recognizes the infected host cell b) The CTL secretes perforin and granzyme, causing apoptosis c) The CTL interacts with epitope presented by MHC-I on the dendritic cell d) The helper T cell activates the CTL cellarrow_forward(56) A 1 year old boy dies of staphylococcal pneumonia. He has had multiple skin infections since birth. Separation of the umbilical cord was delayed. A skin window test was performed and no leukocyte accumulated on the cover ship. The cytometric analysis showed that only 5% of the T lymphocytes reacted with a monoclonal antibody to leukocyte functional antigen-1 chain (CD 18) compared with reactivity of 62 % for a normal subject. Just prior to death, his leukocyte count was 75,000/mm3. Which of the following is the most likely diagnosis? (A) AIDS (B) Cogenital Asplenia (C)Leukocyte Adhesion Deficiency (D) Severe Combined Immunodeficiency Disease (E) X linked agammaglobulinemiaarrow_forwardA process that involves macrophages and eosinophils bound to the stem region of antibody molecules, producing substances that damage large parasites (e.g., worms), is called: Naturally acquired passive immunity Antibody-dependent cell-mediated cytotoxicity T-cell-mediated cytotoxicity Complement-mediated lysis None of the other four answers are the correct name of this processarrow_forward
- Identify each immune response as A - first line, B - second line, or C - third line of defense.arrow_forwardAntigen is injected through vaccination into the same site as a previous injection of that same antigen. Antibody-antigen complexes deposit in basement membranes of the epithelial tissues. Neutrophils infiltrate and degranulate, destroying tissue in that localized area. What is the name for this reaction? O 1) granulomatous reaction 2) arthus reaction 3) serum sickness 4) contact dermatitisarrow_forwardIn a patient of 60 years old after the surgical removal of stomach cancer and subsequent treatment, an enlarged lymph node in the left supraclavicular area was detected. Atypical cells, which were similar to the cells of a previously removed tumor, were found after the biopsy of this lymph node, Questions: 1) What typical pathological process (TPP) has developed in the lymph node? 2) Indicate the stages of this TPP. 3) Indicate possible ways of tumor cells spreading throughout the body.arrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning