A&P II - Ch. 22 Quiz Questions (Lymphatic System)
Examples of physical barriers against pathogens include
all of the above (mucus, sebaceous glands, epidermal layers, epithelia)
Characteristics of specific defenses include
all of the above (tolerance, specificity, versatility, memory)
The body's nonspecific defenses include all of the following, except
antibodies
Compared to blood capillaries, lymph capillaries exhibit all of the following, except that they
are smaller in diameter
Each of the following is a physical barrier to infection, except
complement
The cells directly responsible for cellular immunity are the _____ cells.
cytotoxic T
CD8 markers are to ________ T cells as CD4 markers are to ________ T cells.
cytotoxic; helper
All of the following are true of the primary response of humoral immunity, except that it
is delayed by the memory cell stage
A sample of John's blood shows a high level of pyrogens. This would indicate that John
is running a fever
Class II MHC molecules are found only on which of the following?
lymphocytes and antigen-presenting cells
Helper T cells do all of the following, except
provide a rapid response to a future exposure to the antigen
Defense of the body against a particular pathogen is provided by
specific immunity
A crime scene investigator found that a biological fluid sample contains a large amount of IgA-type antibody. This fluid is probably
tears
T is to ________ as B is to ________.
thymus-dependent; bone marrow-derived
The cells responsible for humoral immunity are the ________ cells.
B
The first line of cellular defense against pathogens are the
phagocytes
Immunoglobulins that are primarily found in glandular secretions such as saliva and tears are
IgA
What does the primary response of humoral immunity include?
depends on antigen triggering the appropriate B cell peaks 1 to 2 weeks after the initial exposure circulating antibodies undergo a gradual, sustained rise requires B cell differentiation into plasma cells
In passive immunization
either C or D (body receives antibodies produced by other humans or body receives antibodies produced by an animal)
B cells are primarily activated by the activities of
helper T cells