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 (B)</p> Signup and view all the answers

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

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

What is the term for proteins that help phagocytosis?

<p>Opsonins (C)</p> Signup and view all the answers

From which cells do plasma cells develop?

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

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

<p>Immunoglobulins (B)</p> Signup and view all the answers

What is the term for the secretions of T lymphocytes?

<p>Lymphokines (D)</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 (C)</p> Signup and view all the answers

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

<p>IgD (B)</p> Signup and view all the answers

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

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

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

<p>Immunoglobulin (A)</p> Signup and view all the answers

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

<p>Phagocytosis (B)</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 (A)</p> Signup and view all the answers

What is the term for secretions of T lymphocytes?

<p>Lymphokines (D)</p> Signup and view all the answers

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

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

Nonspecific immunity includes which of the following?

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

Plasma cells develop from which type of cells?

<p><strong>B lymphocytes</strong> (A)</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 (D)</p> Signup and view all the answers

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

<p>IgE (D)</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 (B)</p> Signup and view all the answers

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

<p>Anaphylactic shock (B)</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 (A)</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 (C)</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 (D)</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 (A)</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 (C)</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 (C)</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 (B)</p> Signup and view all the answers

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

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

From which cells do plasma cells develop?

<p>B lymphocytes (D)</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 (A)</p> Signup and view all the answers

What is the term for proteins secreted by plasma cells?

<p>Immunoglobulins (A)</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 (C)</p> Signup and view all the answers

From which cells do plasma cells develop?

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

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

<p>Anaphylactic shock (A)</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 (D)</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> (C)</p> Signup and view all the answers

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