Pathophysiology Immunity Chapter 7 Questions
with 100% Verified Correct Answers
Neutrophils:
a.
are phagocytic cells.
b.
produce histamine.
c.
produce antibodies.
d.
are elevated during an allergic response. - Correct Answer a. are phagocytic cells.
Which cells are required to process and present antigens from foreign material as the initial step in
the immune response?
a.
Thelper cells
b.
Macrophages
c.
Eosinophils
d.
Monocytes - Correct Answer b. Macrophages
Humoral immunity is mediated by:
a.
natural killer cells.
b.
T lymphocytes (T cells).
c.
B lymphocytes (B cells).
d.
,neutrophils. - Correct Answer c. B lymphocytes (B cells).
A secondary immune response differs from the primary immune response in that:
a.
it is more rapid than the primary response and results in higher antibody levels.
b.
it is slower than the primary response and doesnt change the antibody levels.
c.
it occurs at the same time as the primary response but results in a decrease in antibodies.
d.
it only occurs in hyperallergic reactions and results in a decrease of antibodies. - Correct Answer a. it
is more rapid than the primary response and results in higher antibody levels.
Which type of immunity is provided by a vaccination?
a.
Active natural
b.
Active artificial
c.
Passive natural
d.
Passive artificial - Correct Answer b. Active artificial
When an allergen binds with IgE antibodies on mast cells, resulting in release of chemical mediators,
this reaction is called:
a.
cytotoxic hypersensitivity.
b.
immune complex hypersensitivity.
c.
type I hypersensitivity.
d.
, type IV hypersensitivity. - Correct Answer c. type I hypersensitivity.
The role of memory cells is to:
a.
change into an antibody-secreting cell following activation.
b.
immediately secrete antibodies following the first exposure to antigen.
c.
recognize the antigen and stimulate the immune response.
d.
bind complement to the antibody. - Correct Answer c. recognize the antigen and stimulate the
immune response.
Which statement applies to contact dermatitis?
a.
It occurs when IgE antibodies on the skin react with the causative substance.
b.
It may result from ingested foods.
c.
Urticaria (hives) gradually spread over the body.
d.
A type IV reaction occurs in affected areas. - Correct Answer d. A type IV reaction occurs in affected
areas.
Following a positive HIV antibodies blood test and ELISA test, what is the test commonly used for
confirmation?
a.
Agglutination
b.
Double immunodiffusion test
c.
Western blot test
with 100% Verified Correct Answers
Neutrophils:
a.
are phagocytic cells.
b.
produce histamine.
c.
produce antibodies.
d.
are elevated during an allergic response. - Correct Answer a. are phagocytic cells.
Which cells are required to process and present antigens from foreign material as the initial step in
the immune response?
a.
Thelper cells
b.
Macrophages
c.
Eosinophils
d.
Monocytes - Correct Answer b. Macrophages
Humoral immunity is mediated by:
a.
natural killer cells.
b.
T lymphocytes (T cells).
c.
B lymphocytes (B cells).
d.
,neutrophils. - Correct Answer c. B lymphocytes (B cells).
A secondary immune response differs from the primary immune response in that:
a.
it is more rapid than the primary response and results in higher antibody levels.
b.
it is slower than the primary response and doesnt change the antibody levels.
c.
it occurs at the same time as the primary response but results in a decrease in antibodies.
d.
it only occurs in hyperallergic reactions and results in a decrease of antibodies. - Correct Answer a. it
is more rapid than the primary response and results in higher antibody levels.
Which type of immunity is provided by a vaccination?
a.
Active natural
b.
Active artificial
c.
Passive natural
d.
Passive artificial - Correct Answer b. Active artificial
When an allergen binds with IgE antibodies on mast cells, resulting in release of chemical mediators,
this reaction is called:
a.
cytotoxic hypersensitivity.
b.
immune complex hypersensitivity.
c.
type I hypersensitivity.
d.
, type IV hypersensitivity. - Correct Answer c. type I hypersensitivity.
The role of memory cells is to:
a.
change into an antibody-secreting cell following activation.
b.
immediately secrete antibodies following the first exposure to antigen.
c.
recognize the antigen and stimulate the immune response.
d.
bind complement to the antibody. - Correct Answer c. recognize the antigen and stimulate the
immune response.
Which statement applies to contact dermatitis?
a.
It occurs when IgE antibodies on the skin react with the causative substance.
b.
It may result from ingested foods.
c.
Urticaria (hives) gradually spread over the body.
d.
A type IV reaction occurs in affected areas. - Correct Answer d. A type IV reaction occurs in affected
areas.
Following a positive HIV antibodies blood test and ELISA test, what is the test commonly used for
confirmation?
a.
Agglutination
b.
Double immunodiffusion test
c.
Western blot test
