TOB Module Practical Session 5: Lymphoid System
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Questions and Answers

What is the main function of a lymph node?

  • To aid in digestion
  • To regulate body temperature
  • To produce red blood cells
  • To filter the lymph (correct)

    • Where are the secondary follicles/nodules with germinal centers located within the lymph node?

  • In the cortex directly under the capsule (correct)
  • In the hilum of the lymph node
  • In the subcapsular sinus
  • In the outer cortex composed of T-lymphocytes

    • Which of the following is NOT considered a lymphoid organ?

  • Peyer's patches
  • Tonsils
  • Liver (correct)
  • Thymus

    • What is the main function of the mucosa associated lymphoid tissue (MALT)?

    <p>Participating in immune response</p> Signup and view all the answers

    What is the role of the trabecular sinuses in a lymph node?

    <p>To contain lymph, macrophages, and reticular cells</p> Signup and view all the answers

    Where do the blood vessels enter and efferent lymphatic vessels leave the lymph node?

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

    Where do germinal centers develop in response to immune challenge?

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

    Which region of the lymph node contains mainly T-lymphocytes in a diffuse manner?

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

    Which part of the thymus is responsible for the maturation of T-cells?

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

    What does the medulla of the thymus contain?

    <p>Large number of ERC with less lymphocytes and Hassall’s corpuscles</p> Signup and view all the answers

    What is the main composition of the white pulp in the spleen?

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

    Which part of the lymph node contains lymphoid nodules with germinal centers?

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

    Which region of the lymph node lies between the outer cortex and medulla?

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

    What does the red pulp in the spleen contain?

    <p>Elongated structures known as splenic cords</p> Signup and view all the answers

    What do primary nodules develop in response to immune challenge?

    <p>Develop into secondary nodules</p> Signup and view all the answers

    Which part of the thymus has a peripheral dark zone and a central light zone?

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

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