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  • Question 1 - The predominant site in the lymph node where B lymphocytes are found is:...

    Correct

    • The predominant site in the lymph node where B lymphocytes are found is:

      Your Answer: Cortex

      Explanation:

      The cortex of the lymph node consists of the lymphoid nodules and sinusoids and posses a germinal centre from which B cells proliferate. The cortex of the lymph node predominately consists of B cells.

    • This question is part of the following fields:

      • Immunology
      • Medicine
      9.4
      Seconds

  • Question 2 - Where does control of self-reactive T cells (self-tolerance) initially occur? ...

    Correct

    • Where does control of self-reactive T cells (self-tolerance) initially occur?

      Your Answer: Thymus

      Explanation:

      The thymus provides an inductive environment for development of T cells from hematopoietic progenitor cells. In addition, thymic stromal cells allow for the selection of a functional and self-tolerant T cell repertoire. Therefore, one of the most important roles of the thymus is the induction of central tolerance.

    • This question is part of the following fields:

      • Immunology
      • Medicine
      8
      Seconds

  • Question 3 - Which cell type functions as the critical bridge between innate and adaptive immune...

    Correct

    • Which cell type functions as the critical bridge between innate and adaptive immune systems, by activating naïve T lymphocytes?

      Your Answer: Dendritic cells

      Explanation:

      Dendritic cells are antigen presenting cells. They express class II MHC and T cell co-stimulatory molecules. They bind antigens and present them to native T cells and in the process activate the specific T cell against that antigen.

    • This question is part of the following fields:

      • Immunology
      • Medicine
      7
      Seconds

  • Question 4 - The cytoplasmic form of superoxide dismutase [SOD] contains: ...

    Correct

    • The cytoplasmic form of superoxide dismutase [SOD] contains:

      Your Answer: Zn and Cu

      Explanation:

      The cytoplasmic form of superoxide dismutase [SOD] contains zinc and copper

    • This question is part of the following fields:

      • Immunology
      • Medicine
      6.8
      Seconds

  • Question 5 - Which of the following cells release histamines when they are activated by binding...

    Correct

    • Which of the following cells release histamines when they are activated by binding of specific antigens to cell fixed IgE molecules?

      Your Answer: Basophils

      Explanation:

      Mast cells and basophils both contain granules of vasoactive histamine in their cytosol. Both of them express IgE receptors on their cell surface and upon binding with a specific antigen they release their cytokines including histamine.

    • This question is part of the following fields:

      • Immunology
      • Medicine
      7.6
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Immunology (5/5) 100%
Medicine (5/5) 100%
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