Biology of the Immune System Review
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Questions and Answers

Which of the following best describes the biological components of the innate immune system?

  • Macrophages and natural killer cells (correct)
  • Antigens and antibodies
  • T cells and B cells
  • Interleukins and interferons

    • What is the mechanism of action of the complement system in the immune response?

  • Activation of T cell proliferation
  • Production of antibodies
  • Direct killing of infected cells
  • Opsonization and lysis of pathogens (correct)

    • Which type of hypersensitivity reaction involves the recruitment of T lymphocytes?

  • Type III
  • Type IV (correct)
  • Type I
  • Type II

    • In humoral immune responses, which cell type is responsible for producing antibodies?

    <p>Plasma cells</p> Signup and view all the answers

    What are the primary causes of immunodeficiency?

    <p>Genetic mutations and exposure to environmental toxins</p> Signup and view all the answers

    Which cellular component is involved in the innate immune response to infections?

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

    Which of the following characteristics is NOT a key feature of the immune system?

    <p>Non-specificity</p> Signup and view all the answers

    What type of immunity requires exposure to an antigen in order to become activated?

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

    The identity of the foreign material that led to the first immune response is remembered, conferring long-term immunity against infections. Which key feature of the immune system does this describe?

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

    Which category of pathogens includes viruses, bacteria, mycobacteria, parasites, and fungi?

    <p>Exogenous pathogens</p> Signup and view all the answers

    Which book and edition are recommended for further reading on this topic?

    <p>Robbins Basic Pathology, 11th Edition</p> Signup and view all the answers

    Which science examines the structure and function of the immune system?

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

    Which phase of the immune reaction is mediated through multiple pathways that act synergistically for optimal effect?

    <p>Amplification phase</p> Signup and view all the answers

    What characteristic enables the immune system to distinguish between normal self, altered self, and non-self (foreign material)?

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

    Which type of hypersensitivity reaction involves the formation of immune complexes and activation of the complement system?

    <p>Type III</p> Signup and view all the answers

    What is the cell type responsible for antigen presentation in the immune system?

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

    Which of the following is NOT a characteristic of the innate immune system?

    <p>Memory response</p> Signup and view all the answers

    What type of hypersensitivity reaction is characterized by the involvement of T lymphocytes and delayed onset of symptoms?

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

    Which component of the immune system is responsible for producing antibodies in response to antigens?

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

    Which category of pathogens includes helminths, protozoa, and ectoparasites?

    <p>Parasitic pathogens</p> Signup and view all the answers

    Which characteristic of the immune system involves the ability to control the type, intensity, and duration of the immune reaction?

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

    What confers long-term immunity against infections by enabling an accelerated reaction during the secondary immune response?

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

    Which type of immunity does not require prior exposure to a microbe to mount an immune response?

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

    Which type of pathogens include viruses, bacteria, mycobacteria, parasites, and fungi?

    <p>Microbial pathogens</p> Signup and view all the answers

    What is the primary function of the innate immune system?

    <p>To mount an immediate response to pathogens</p> Signup and view all the answers

    Which cell type is responsible for producing antibodies in humoral immune responses?

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

    Which characteristic allows the immune system to distinguish between normal self, altered self, and non-self (foreign material)?

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

    Which phase of the immune reaction is mediated through multiple pathways that act synergistically for optimal effect?

    <p>Amplification phase</p> Signup and view all the answers

    What science examines the structure and function of the immune system?

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

    What are the general characteristics of immunity?

    <p>The ability to control the type, intensity, and duration of the reaction; specificity; regulation; amplification; and memory.</p> Signup and view all the answers

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