B and T Cell Development and Immune Response
34 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Where does the B cell undergo nearly all of its development?

  • Thymus gland
  • Spleen
  • Lymph nodes
  • Red bone marrow (correct)
  • What is the primary function of the thymus gland in the immune system?

  • Maturation of T cells (correct)
  • Proliferation of lymphocytes
  • Maturation of B cells
  • Selection of pathogens
  • Which organ takes over most hematopoietic functions as development proceeds?

  • Thymus gland
  • Liver
  • Bone marrow (correct)
  • Spleen
  • What type of cells make up the yellow bone marrow?

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

    Where is the thymus gland located in the body?

    <p>Between the sternum and the aorta</p> Signup and view all the answers

    Which organ serves as a primary lymphoid organ where lymphocytes mature?

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

    Where does the immature T cell, called a thymocyte, primarily mature?

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

    Which organ is responsible for hematopoiesis and consists largely of fat cells?

    <p>Yellow bone marrow</p> Signup and view all the answers

    What is the primary function of the primary lymphoid organs in the immune system?

    <p>Selection of lymphocytes</p> Signup and view all the answers

    Which organ is a bilobed organ located between the sternum and the aorta of the heart?

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

    In which organ does the B cell mostly undergo its development?

    <p>Red bone marrow</p> Signup and view all the answers

    Which connective tissue structure further divides the thymus into lobules?

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

    What is the main function of tonsils in the body?

    <p>To recognize and eliminate pathogens</p> Signup and view all the answers

    Where is mucosa-associated lymphoid tissue (MALT) found in the body?

    <p>Underlying the mucosa of various organs</p> Signup and view all the answers

    What specific role do Peyer’s patches play in the immune system?

    <p>Initiate immune responses against ingested substances</p> Signup and view all the answers

    What type of cells within MALT samples material from the intestinal lumen for immune responses?

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

    What can happen if there is a blockage of the lumen in the appendix involving MALT?

    <p>Immune response activation</p> Signup and view all the answers

    Why are tonsils often removed in children with recurring throat infections?

    <p>To eliminate interference with breathing and swallowing</p> Signup and view all the answers

    What is the main difference between a naïve lymphocyte and an activated lymphocyte?

    <p>Naïve lymphocytes have not yet encountered an antigen, while activated lymphocytes have.</p> Signup and view all the answers

    What is the function of germinal centers in secondary lymphoid organs?

    <p>Sites of rapidly dividing and differentiating B lymphocytes</p> Signup and view all the answers

    What is the role of high endothelial venules in secondary lymphoid organs?

    <p>Facilitate direct entry of cells from the blood into the tissues</p> Signup and view all the answers

    What is the primary function of lymph nodes in the immune system?

    <p>Remove debris and pathogens from the lymph</p> Signup and view all the answers

    Where do lymphocytes primarily develop and mature?

    <p>Primary lymphoid organs</p> Signup and view all the answers

    What is a defining feature of lymphoid follicles in secondary lymphoid organs?

    <p>Sites of the formation of B and T cells</p> Signup and view all the answers

    What is the primary function of dendritic cells and macrophages in the lymph node?

    <p>Internalizing and killing pathogens</p> Signup and view all the answers

    Which structural feature provides support to the lymph node by laying down reticular fibers?

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

    What is the main function of the spleen in relation to blood?

    <p>Filtering blood and removing microbes</p> Signup and view all the answers

    Which statement best describes the function of red pulp in the spleen?

    <p>Acts as a filtration system for the blood using immune cells</p> Signup and view all the answers

    What is the role of white pulp in the spleen?

    <p>Mounting adaptive T and B cell responses</p> Signup and view all the answers

    Where are lymphoid nodules commonly found in the body?

    <p>Respiratory and digestive tracts</p> Signup and view all the answers

    What is the role of tonsils in developing immunity?

    <p>Developing immunity to oral pathogens</p> Signup and view all the answers

    Which type of cells are found in dense clusters within lymphoid nodules?

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

    What is the function of medullary sinuses in the lymph node?

    <p>Collecting lymph before leaving via efferent vessels</p> Signup and view all the answers

    What provides structural support to the lymph nodes along with the capsule and trabeculae?

    <p>Reticular fibers laid down by fibroblasts</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser