Immunology and Immune System Components
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Questions and Answers

What is the main function of the immune system?

  • Produce toxins to kill pathogens
  • Destroy all cells in the body
  • Help in digestion of food
  • Provide non-specific and specific protection against microorganisms (correct)

    • What is a characteristic feature of the immune system?

  • Weak response to external threats
  • Ability to discriminate between self and non-self (correct)
  • Lack of memory
  • Inability to respond to antigens

    • Where do T cell precursors originate?

  • Spleen
  • Bone marrow (correct)
  • Lymph nodes
  • Thymus

    • Which organ is important in T cell maturation?

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

    What is the primary function of secondary (peripheral) lymphoid organs and tissues?

    <p>Occurrence of immune responses</p> Signup and view all the answers

    Which of the following cells are responsible for producing antibodies?

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

    Which of the following cells develop in the thymus?

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

    What is the primary function of helper T cells (CD4+)?

    <p>Promote the activation of B cells and cytotoxic T cells</p> Signup and view all the answers

    Which of the following is a type of macrophage found in the lung?

    <p>Alveolar macrophage</p> Signup and view all the answers

    Which of the following cells are identified by the presence of the CD19 or CD20 marker?

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

    Where are lymphocytes concentrated in the body?

    <p>In areas most likely to be invaded by pathogens</p> Signup and view all the answers

    What is the primary function of B cells?

    <p>To produce antibodies</p> Signup and view all the answers

    Which type of T cell helps stimulate the B cell response?

    <p>Helper T cells</p> Signup and view all the answers

    Which type of macrophage is found in the lung?

    <p>Alveolar macrophages</p> Signup and view all the answers

    Where do T cell precursors originate?

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

    Which of the following is NOT a primary (central) lymphoid organ?

    <p>Lymph nodes</p> Signup and view all the answers

    What is the main function of the thymus gland in the immune system?

    <p>Maturation of T cell precursors</p> Signup and view all the answers

    Which of the following is a key characteristic of the immune system?

    <p>Ability to discriminate between self and non-self</p> Signup and view all the answers

    What is the primary function of the secondary (peripheral) lymphoid organs and tissues?

    <p>Immune response to pathogens and antigens</p> Signup and view all the answers

    Where do B cells mature and develop?

    <p>Bone marrow</p> Signup and view all the answers

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