5 Written questions
5 Matching questions
- An increase in white blood cell number at sites of injury, which is characteristic of inflammation, is called ______.
- T OR F: The mechanism of the "lethal hit" of cytotoxic T cells and NK cells involves a protein called perforin.
- Macrophages are derived from _____.
- What occurs if a T cell binds to an antigen and the T cell does not receive a co-stimulatory signal?
- Which of the following statements is a false or incorrect statement?
- a leukocytosis
- b T cells and B cells become fully immunocompetent when they bind with recognized antigens;
The lymphoid organs where lymphocytes become immunocompetent are called primary lymph organs. All other lymphoid organs are referred to as secondary lymphoid organs;
It is our genes, not antigens, that determine what specific foreign substances our immune system will be able to recognize and resist;
AFTER BECOMING IMMUNOCOMPETENT, THE NAIVE T CELLS AND B CELLS ARE EXPORTED TO THE BONE MARROW WHERE THE ENCOUNTERS WITH ANTIGENS OCCUR
- c TRUE
- d The T cell enters a state of anergy.
- e monocytes
5 Multiple choice questions
- T helper cells
- helper T cell
- T helper cells
5 True/False questions
Delayed hypersensitivities ________. → include allergic contact dermatitis
Which class of MHC proteins presents exogenous antigens? → One antigen may have many different antigenic determinants and may therefore cause the formation of more than one antibody.
Pure antibody preparations specific for a single antigenic determinant are called ________ antibodies. → monoclonal
Which major class of lymphocytes become cytotoxic T cells? → processed fragments of protein antigens displayed on surfaces of body cells
Which of the following best describes an antibody's mode of action? → Antibodies immobilize antigens and mark them for destruction.