Features of Innate and Adaptive Immunity
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Questions and Answers

What is the primary function of the innate immune system?

  • To coordinate the adaptive immune response against specific antigens
  • To recognize and respond to a wide variety of molecular patterns associated with microbes and damaged host cells (correct)
  • To produce antibodies that neutralize foreign substances
  • To provide long-lasting, specific immunity against pathogens

    • Which of the following is a key feature that distinguishes innate and adaptive immunity?

  • Innate immunity provides long-lasting memory responses, while adaptive immunity does not
  • Innate immunity has limited diversity, while adaptive immunity has a very large diversity of antigen receptors (correct)
  • Innate immunity is specific for self-molecules, while adaptive immunity is not
  • Innate immunity involves only cellular components, while adaptive immunity involves both cellular and humoral components

    • Which of the following is a primary lymphoid organ?

  • Spleen
  • Mucosal-associated lymphoid tissue
  • Thymus (correct)
  • Lymph nodes

    • Which of the following is a key function of the skin and mucosal epithelia as part of the innate immune system?

    <p>To provide a physical and chemical barrier against microorganisms</p> Signup and view all the answers

    What is the primary role of lymphocytes in the adaptive immune system?

    <p>To generate highly specific antigen receptors and mediate targeted immune responses</p> Signup and view all the answers

    Which of the following is a secondary lymphoid organ?

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

    Where do immature lymphocytes develop?

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

    Which tissue is NOT considered a secondary (peripheral) lymphoid tissue?

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

    What is the site of generation of circulating blood cells?

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

    Which of the following is a mucosal-associated lymphoid tissue?

    <p>Peyer's Patches</p> Signup and view all the answers

    Which organ is associated with skin-associated lymphoid tissue?

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

    Where are lymphocytes derived from a common bone marrow lymphoid progenitor cell?

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

    Which of the following is a primary lymphoid organ where immature lymphocytes develop?

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

    Which of the following is a secondary lymphoid organ where antigen is localized to be exposed to mature lymphocytes?

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

    What is the function of the lymphatic system?

    <p>To drain fluid from tissues and maintain fluid homeostasis</p> Signup and view all the answers

    What is the structure of a secondary lymphoid follicle?

    <p>A ring of B cells surrounding a germinal center with proliferating B and T cells</p> Signup and view all the answers

    Which of the following is an example of a mucosal-associated lymphoid tissue (MALT)?

    <p>Peyer's patches</p> Signup and view all the answers

    What is the function of lymphatic capillaries?

    <p>To permit free uptake of interstitial fluid</p> Signup and view all the answers

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