General Pathology-2: Disorders of Immune Reaction
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Questions and Answers

Which of the following is defined as a foreign protein that can evoke an immune response mediated by B or T lymphocytes?

  • Antigen (correct)
  • Antibody
  • Hapten
  • Immunoglobulin

    • What is a hapten?

  • A non-specific irritant
  • An incomplete antigen (correct)
  • A type of antigen
  • A type of lymphocyte

    • What are the proteins secreted by plasma cells called?

  • Antigens
  • Lymphokines
  • Antibodies (correct)
  • Opsonins

    • What is the term for body defense mechanisms aiming at disposal of living irritants?

    <p>Nonspecific immunity</p> Signup and view all the answers

    Which type of immunity involves serum antibodies secreted by plasma cells?

    <p>Humoral immunity</p> Signup and view all the answers

    What is the term for proteins that help phagocytosis?

    <p>Opsonins</p> Signup and view all the answers

    From which cells do plasma cells develop?

    <p>B lymphocytes</p> Signup and view all the answers

    Which of the following is NOT an example of useful antibodies?

    <p>Immunoglobulins</p> Signup and view all the answers

    What is the term for the secretions of T lymphocytes?

    <p>Lymphokines</p> Signup and view all the answers

    What is the term for a non-protein foreign substance (e.g. drug) that can evoke an immune response by combining with one of the body proteins?

    <p>Hapten</p> Signup and view all the answers

    Which of the following is NOT a serum antibody secreted by plasma cells?

    <p>IgD</p> Signup and view all the answers

    What type of immunity involves lymphokines secreted by stimulated T lymphocytes?

    <p>Cell-mediated immunity</p> Signup and view all the answers

    Which of the following is a protein secreted by plasma cells?

    <p>Immunoglobulin</p> Signup and view all the answers

    What term refers to body defense mechanisms aiming at disposal of living irritants?

    <p>Phagocytosis</p> Signup and view all the answers

    Which of the following is defined as a foreign protein that can evoke an immune response mediated by B or T lymphocytes?

    <p>Antigen</p> Signup and view all the answers

    What is the term for secretions of T lymphocytes?

    <p>Lymphokines</p> Signup and view all the answers

    Which of the following is NOT an example of useful antibodies?

    <p><strong>Immunoglobulins</strong></p> Signup and view all the answers

    Nonspecific immunity includes which of the following?

    <p><strong>Natural killer cells</strong></p> Signup and view all the answers

    Plasma cells develop from which type of cells?

    <p><strong>B lymphocytes</strong></p> Signup and view all the answers

    Which type of hypersensitivity involves the production of IgE localized within a certain tissue or organ?

    <p>Type I hypersensitivity</p> Signup and view all the answers

    What is the main immunoglobulin involved in Type I hypersensitivity reactions?

    <p>IgE</p> Signup and view all the answers

    Which type of reaction is characterized by the liberation of histamine and other chemical mediators from mast cells?

    <p>Type I hypersensitivity</p> Signup and view all the answers

    Which condition may manifest as urticaria, bronchospasm, generalized edema, and even shock and death?

    <p>Anaphylactic shock</p> Signup and view all the answers

    Which type of hypersensitivity reaction involves the activation of macrophages to engulf an organism?

    <p>Type IV hypersensitivity</p> Signup and view all the answers

    Which type of hypersensitivity reaction is NOT mediated by immunoglobulins but by sensitized T cells?

    <p>Type IV hypersensitivity</p> Signup and view all the answers

    What distinguishes atopy from anaphylactic shock in terms of IgE production?

    <p>Localization of IgE production within a specific tissue or organ</p> Signup and view all the answers

    What distinguishes Type IV hypersensitivity from Type I, II, and III in terms of the reaction development time?

    <p>It develops over several days</p> Signup and view all the answers

    What is the mechanism behind Type I hypersensitivity reactions?

    <p>Introduction of antigen stimulates IgE formation, leading to histamine release from mast cells</p> Signup and view all the answers

    What are the characteristics of allergic inflammation seen in Type I hypersensitivity reactions?

    <p>Excess fluid exudate (oedema) and eosinophils</p> Signup and view all the answers

    What is the term for a non-protein foreign substance that can evoke an immune response by combining with one of the body proteins?

    <p>Hapten</p> Signup and view all the answers

    Which type of immunity involves the secretion of serum antibodies by plasma cells?

    <p>Humoral immunity</p> Signup and view all the answers

    From which cells do plasma cells develop?

    <p>B lymphocytes</p> Signup and view all the answers

    Which of the following is NOT a characteristic of nonspecific immunity?

    <p>Secretion of serum antibodies by plasma cells</p> Signup and view all the answers

    What is the term for proteins secreted by plasma cells?

    <p>Immunoglobulins</p> Signup and view all the answers

    Which type of hypersensitivity reaction is characterized by the liberation of histamine and other chemical mediators from mast cells?

    <p>Type I hypersensitivity</p> Signup and view all the answers

    From which cells do plasma cells develop?

    <p>B lymphocytes</p> Signup and view all the answers

    Which condition may manifest as urticaria, bronchospasm, generalized edema, and even shock and death?

    <p>Anaphylactic shock</p> Signup and view all the answers

    What distinguishes atopy from anaphylactic shock in terms of IgE production?

    <p>Localization of IgE production in atopy</p> Signup and view all the answers

    What is the term for body defense mechanisms aiming at disposal of living irritants?

    <p><strong>Nonspecific immunity</strong></p> Signup and view all the answers

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