Multiple Choice
__________ is the property of lymphocytes that prevents them from attacking the body's own cells.
21. The Immune System
Immune Tolerance
Back21. The Immune System
Immune Tolerance
- Open QuestionBlocking the antigen receptors on the surface of lymphocytes would interfere with (a) phagocytosis of the antigen, (b) that lymphocyte's ability to produce antibodies, (c) antigen recognition, (d) the ability of the lymphocyte to present antigen, (e) opsonization of the antigen.
- Open QuestionDifferentiate between humoral and cellular adaptive immunity.
- Open Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. The immune response to a viral infection involves NK cells and different kinds of lymphocytes.
- Open QuestionCD4 markers are associated with (a) cytotoxic T cells, (b) regulatory T cells, (c) helper T cells, (d) all of these.
- Multiple ChoiceSelf-reactive B cells are eliminated in the __________.
- Open Question
Type I hypersensitivity is due to release of inflammatory mediators from_____, and type IV hypersensitivity is due to the actions of_____.
a. TH cells; macrophages
b. neutrophils; TH cells
c. B cells; TC cells
d. mast cells; TH cells
- Multiple Choice
Which of the following is NOT a consequence of the immune system lacking an immune tolerance?
- Multiple ChoiceWhich type of disease results from the inability of the immune system to distinguish self- from nonself-antigens?
- Open QuestionLymphocytes that develop immunocompetence in the bone marrow area. T lymphocytes,b. B lymphocytes,c. NK cells,d. B and T lymphocytes.
- Open Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. Cancer cells are destroyed by NK cells, TC cells, and macrophages.
- Open Question
Complement proteins are crucial for stimulating phagocytes to clear immune complexes. Predict what type of hypersensitivity disorder might result from complement deficiencies. Explain what other consequences might arise from a complement deficiency.
- Open QuestionGive a function for each of the following: (a) cytotoxic T cells, (b) helper T cells, (c) regulatory T cells, (d) plasma cells,(e) NK cells,
- Open QuestionDefine immunocompetence and self-tolerance. How is self-tolerance achieved?
- Open Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. Dendritic cells may activate both TH and TC cells.