39 Questions
Which of the following is defined as a foreign protein that can evoke an immune response mediated by B or T lymphocytes?
Antigen
What is a hapten?
An incomplete antigen
What are the proteins secreted by plasma cells called?
Antibodies
What is the term for body defense mechanisms aiming at disposal of living irritants?
Nonspecific immunity
Which type of immunity involves serum antibodies secreted by plasma cells?
Humoral immunity
What is the term for proteins that help phagocytosis?
Opsonins
From which cells do plasma cells develop?
B lymphocytes
Which of the following is NOT an example of useful antibodies?
Immunoglobulins
What is the term for the secretions of T lymphocytes?
Lymphokines
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?
Hapten
Which of the following is NOT a serum antibody secreted by plasma cells?
IgD
What type of immunity involves lymphokines secreted by stimulated T lymphocytes?
Cell-mediated immunity
Which of the following is a protein secreted by plasma cells?
Immunoglobulin
What term refers to body defense mechanisms aiming at disposal of living irritants?
Phagocytosis
Which of the following is defined as a foreign protein that can evoke an immune response mediated by B or T lymphocytes?
Antigen
What is the term for secretions of T lymphocytes?
Lymphokines
Which of the following is NOT an example of useful antibodies?
Immunoglobulins
Nonspecific immunity includes which of the following?
Natural killer cells
Plasma cells develop from which type of cells?
B lymphocytes
Which type of hypersensitivity involves the production of IgE localized within a certain tissue or organ?
Type I hypersensitivity
What is the main immunoglobulin involved in Type I hypersensitivity reactions?
IgE
Which type of reaction is characterized by the liberation of histamine and other chemical mediators from mast cells?
Type I hypersensitivity
Which condition may manifest as urticaria, bronchospasm, generalized edema, and even shock and death?
Anaphylactic shock
Which type of hypersensitivity reaction involves the activation of macrophages to engulf an organism?
Type IV hypersensitivity
Which type of hypersensitivity reaction is NOT mediated by immunoglobulins but by sensitized T cells?
Type IV hypersensitivity
What distinguishes atopy from anaphylactic shock in terms of IgE production?
Localization of IgE production within a specific tissue or organ
What distinguishes Type IV hypersensitivity from Type I, II, and III in terms of the reaction development time?
It develops over several days
What is the mechanism behind Type I hypersensitivity reactions?
Introduction of antigen stimulates IgE formation, leading to histamine release from mast cells
What are the characteristics of allergic inflammation seen in Type I hypersensitivity reactions?
Excess fluid exudate (oedema) and eosinophils
What is the term for a non-protein foreign substance that can evoke an immune response by combining with one of the body proteins?
Hapten
Which type of immunity involves the secretion of serum antibodies by plasma cells?
Humoral immunity
From which cells do plasma cells develop?
B lymphocytes
Which of the following is NOT a characteristic of nonspecific immunity?
Secretion of serum antibodies by plasma cells
What is the term for proteins secreted by plasma cells?
Immunoglobulins
Which type of hypersensitivity reaction is characterized by the liberation of histamine and other chemical mediators from mast cells?
Type I hypersensitivity
From which cells do plasma cells develop?
B lymphocytes
Which condition may manifest as urticaria, bronchospasm, generalized edema, and even shock and death?
Anaphylactic shock
What distinguishes atopy from anaphylactic shock in terms of IgE production?
Localization of IgE production in atopy
What is the term for body defense mechanisms aiming at disposal of living irritants?
Nonspecific immunity
Test your understanding of the disorders of immune reaction with this quiz based on Dr. Mohammed Abdellah's lecture at Sinai University. Topics include definitions of antigens, auto-antigens, hapten, and immune response mediated by B or T lymphocytes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
