Test Your Understanding of Antigen Capture and Presentation in the Immune System
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Questions and Answers

Which cells are the most specialized antigen-presenting cells in the immune system?

  • Dendritic cells (correct)
  • Macrophages
  • B cells
  • T cells
  • What is the function of dendritic cells in the immune system?

  • To produce antibodies against antigens
  • To recognize antigens of microbes directly
  • To capture and present antigens to lymphocytes (correct)
  • To phagocytose microbes
  • What is the role of costimulators in T cell responses?

  • To differentiate effector T cells
  • To activate naive T lymphocytes (correct)
  • To destroy microbes
  • To present antigens to B cells
  • Which cells may directly recognize the antigens of microbes?

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

    Where do follicular dendritic cells reside?

    <p>In the germinal centers of lymphoid follicles</p> Signup and view all the answers

    What is the function of macrophages in the immune system?

    <p>To phagocytose microbes</p> Signup and view all the answers

    Which cells are the most potent stimulators of naive T cells?

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

    What is the function of antigen presentation in the immune system?

    <p>To activate naive T lymphocytes</p> Signup and view all the answers

    What is the function of effector T cells in the immune system?

    <p>To eliminate infected cells</p> Signup and view all the answers

    What is the function of B cells in the immune system?

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

    Which cells reside in the germinal centers of lymphoid follicles in peripheral lymphoid organs?

    <p>Follicular dendritic cells</p> Signup and view all the answers

    What is the function of T lymphocytes in the immune system?

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

    Which cells are the most specialized antigen-presenting cells in the immune system?

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

    What is the function of dendritic cells in the immune system?

    <p>To capture and present antigens to lymphocytes</p> Signup and view all the answers

    What is the role of costimulators in T cell responses?

    <p>To activate naive T lymphocytes</p> Signup and view all the answers

    Which cells may directly recognize the antigens of microbes?

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

    Where do follicular dendritic cells reside?

    <p>In the germinal centers of lymphoid follicles</p> Signup and view all the answers

    What is the function of macrophages in the immune system?

    <p>To phagocytose microbes</p> Signup and view all the answers

    Which cells are the most potent stimulators of naive T cells?

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

    What is the function of antigen presentation in the immune system?

    <p>To activate naive T lymphocytes</p> Signup and view all the answers

    What is the function of effector T cells in the immune system?

    <p>To eliminate infected cells</p> Signup and view all the answers

    What is the function of B cells in the immune system?

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

    Which cells reside in the germinal centers of lymphoid follicles in peripheral lymphoid organs?

    <p>Follicular dendritic cells</p> Signup and view all the answers

    What is the function of T lymphocytes in the immune system?

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

    Which type of cells are the most specialized antigen-presenting cells (APCs) in the immune system?

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

    Which cells respond to microbes by producing surface proteins called costimulators, which are required, together with antigen, to activate naive T lymphocytes to proliferate and differentiate into effector cells?

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

    Which cells are the most potent stimulators of naive T cells and the most efficient initiators of T cell responses?

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

    Which specialized cells capture antigens of microbes that cross epithelial barriers and transport these antigens to regional lymph nodes, where they display fragments of the proteins for recognition by T lymphocytes?

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

    Which cells may directly recognize the antigens of microbes (either released or on the surface of the microbes)?

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

    Which cells present antigens to differentiated effector T cells in various immune responses?

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

    Which type of cell resides in the germinal centers of lymphoid follicles in the peripheral lymphoid organs and displays antigens that stimulate the differentiation of B cells in the follicles?

    <p>Follicular dendritic cell (FDC)</p> Signup and view all the answers

    Which type of cells capture microbes or their antigens that enter lymphoid organs, and present them to lymphocytes?

    <p>Macrophages and dendritic cells</p> Signup and view all the answers

    Which cells may be phagocytosed and presented by tissue macrophages if a microbe has invaded through the epithelium?

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

    Which type of cells display antigens that stimulate the differentiation of B cells in the follicles, but do not present antigens to T cells?

    <p>Follicular dendritic cells (FDCs)</p> Signup and view all the answers

    Which type of cells contain specialized cells located in the epithelium that capture antigens, transport them to peripheral lymphoid tissues, and display (present) them to lymphocytes?

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

    Which type of cells present antigens to B cells in peripheral lymphoid organs?

    <p>Macrophages and dendritic cells</p> Signup and view all the answers

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