Which of the following cells is phagocytic?
- plasma cell
 - macrophage
 - B cell
 - NK cell
 
Which structure allows lymph from the lower right limb to enter the bloodstream?
- thoracic duct
 - right lymphatic duct
 - right lymphatic trunk
 - left lymphatic trunk
 
Which of the following cells is important in the innate immune response?
- B cells
 - T cells
 - macrophages
 - plasma cells
 
Which of the following cells would be most active in early, antiviral immune responses the first time one is exposed to pathogen?
- macrophage
 - T cell
 - neutrophil
 - natural killer cell
 
Which of the lymphoid nodules is most likely to see food antigens first?
- tonsils
 - Peyer’s patches
 - bronchus-associated lymphoid tissue
 - mucosa-associated lymphoid tissue
 
Which of the following signs is not characteristic of inflammation?
- redness
 - pain
 - cold
 - swelling
 
Which of the following is not important in the antiviral innate immune response?
- interferons
 - natural killer cells
 - complement
 - microphages
 
Enhanced phagocytosis of a cell by the binding of a specific protein is called ________.
- endocytosis
 - opsonization
 - anaphylaxis
 - complement activation
 
Which of the following leads to the redness of inflammation?
- increased vascular permeability
 - anaphylactic shock
 - increased blood flow
 - complement activation
 
T cells that secrete cytokines that help antibody responses are called ________.
- Th1
 - Th2
 - regulatory T cells
 - thymocytes
 
The taking in of antigen and digesting it for later presentation is called ________.
- antigen presentation
 - antigen processing
 - endocytosis
 - exocytosis
 
Why is clonal expansion so important?
- to select for specific cells
 - to secrete cytokines
 - to kill target cells
 - to increase the numbers of specific cells
 
The elimination of self-reactive thymocytes is called ________.
- positive selection.
 - negative selection.
 - tolerance.
 - clonal selection.
 
Which type of T cell is most effective against viruses?
- Th1
 - Th2
 - cytotoxic T cells
 - regulatory T cells
 
Removing functionality from a B cell without killing it is called ________.
- clonal selection
 - clonal expansion
 - clonal deletion
 - clonal anergy
 
Which class of antibody crosses the placenta in pregnant people?
- IgM
 - IgA
 - IgE
 - IgG
 
Which class of antibody has no known function other than as an antigen receptor?
- IgM
 - IgA
 - IgE
 - IgD
 
When does class switching occur?
- primary response
 - secondary response
 - tolerance
 - memory response
 
Which class of antibody is found in mucus?
- IgM
 - IgA
 - IgE
 - IgD
 
Which enzymes in macrophages are important for clearing intracellular bacteria?
- metabolic
 - mitochondrial
 - nuclear
 - lysosomal
 
What type of chronic lung disease is caused by a Mycobacterium?
- asthma
 - emphysema
 - tuberculosis
 - leprosy
 
Which type of immune response is most directly effective against bacteria?
- natural killer cells
 - complement
 - cytotoxic T cells
 - helper T cells
 
What is the reason that you have to be immunized with a new influenza vaccine each year?
- the vaccine is only protective for a year
 - mutation
 - macrophage oxidative metabolism
 - memory response
 
Which type of immune response works in concert with cytotoxic T cells against virally infected cells?
- natural killer cells
 - complement
 - antibodies
 - memory
 
Which type of hypersensitivity involves soluble antigen-antibody complexes?
- type I
 - type II
 - type III
 - type IV
 
What causes the delay in delayed hypersensitivity?
- inflammation
 - cytokine release
 - recruitment of immune cells
 - histamine release
 
Which of the following is a critical feature of immediate hypersensitivity?
- inflammation
 - cytotoxic T cells
 - recruitment of immune cells
 - histamine release
 
Which of the following is an autoimmune disease of the heart?
- rheumatoid arthritis
 - lupus
 - rheumatic fever
 - Hashimoto’s thyroiditis
 
What drug is used to counteract the effects of anaphylactic shock?
- epinephrine
 - antihistamines
 - antibiotics
 - aspirin
 
Which of the following terms means “many genes”?
- polymorphism
 - polygeny
 - polypeptide
 - multiple alleles
 
Why do we have natural antibodies?
- We don’t know why.
 - immunity to environmental bacteria
 - immunity to transplants
 - from clonal selection
 
Which type of cancer is associated with HIV disease?
- Kaposi’s sarcoma
 - melanoma
 - lymphoma
 - renal cell carcinoma
 
How does cyclosporine A work?
- suppresses antibodies
 - suppresses T cells
 - suppresses macrophages
 - suppresses neutrophils
 
What disease is associated with bone marrow transplants?
- diabetes mellitus type I
 - melanoma
 - headache
 - graft-versus-host disease