21. The Immune System
Immune Tolerance
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- Textbook Question
Which of the following conditions may lead to the development of autoimmunity?
a. Self antigens not previously encountered by T cells are released into the circulation
b. Foreign antigens mimic self antigens
c. Cells may inappropriately display class II MHC molecules
d. Certain pathogens nonspecifically activate B cells
e. All of the above are correct
750views - Textbook Question
What are the three classes of lymphocytes, and where does each class originate?
1213views - Textbook Question
A decrease in which population of lymphocytes would impair all aspects of an immune response?
(a) Cytotoxic T cells
(b) Helper T cells
(c) Regulatory T cells
(d) B cells
(e) Plasma cells
1005views - Textbook Question
Perforins are proteins associated with the activity of
(a) T cells
(b) B cells
(c) NK cells
(d) Plasma cells
1171views - Multiple Choice
Where do T cells undergo central tolerance selection?
441views1rank - Multiple Choice
What is immunological tolerance?
520views3rank - Multiple ChoiceLymphocytes that develop immunocompetence in the thymus are __________.1997views
- Multiple ChoiceAll of the following are examples of autoimmune disorders EXCEPT __________.4678views1comments