Advanced Pathophysiology Exam
2 NEWEST 2024 ACTUAL EXAM
131 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES VERIFIED
ANSWERS ALREADY GRADED A+
,Th2 cells produce IL-4 and suppress which cells? a. B
lymphocytes b. Cytotoxic T lymphocytes c. Th1 cells d.
Memory T lymphocytes - ANSWER-C. Th2 cells produce
IL-4, which suppresses only Th1 and Th17 cells through
their IL-4 receptors.
Which action is a purpose of the inflammatory process?
a. To provide specific responses toward antigens b. To
lyse cell membranes of microorganisms c. To prevent
infection of the injured tissue d. To create immunity
against subsequent tissue injury - ANSWER-C. If the
epithelial barrier is damaged, then a highly efficient local
and systemic response (inflammation) is mobilized to
limit the extent of damage, to protect against infection,
and to initiate the repair of damaged tissue. The response
to a specific offending agent is the function of the adaptive
immune response. Lysosomes lyse cell membranes.
Immunity against a subsequent tissue injury occurs
through the action of B cells and T cells.
What causes the edema that occurs during the
inflammatory process? a. Vasodilation of blood vessels b.
Increased capillary permeability c. Endothelial cell
expansion d. Emigration of neutrophils - ANSWER-B. The
,increased flow and capillary permeability result in a
leakage of plasma from the vessels, causing swelling
(edema) in the surrounding tissue and is solely
responsible for inflammation-induced edema.
Vasodilation (increased size of the blood vessels) causes
slower blood velocity and increases blood flow to the
injured site. Endothelial cell contraction (not expansion)
leads to increased capillary permeability. Emigration of
neutrophils to the area of infection/injury leads to
increased destruction of the offending agent.
What plasma protein system forms a fibrinous meshwork
at an inflamed site? a. Complement b. Coagulation c. Kinin
d. Fibrinolysis - ANSWER-B. The coagulation (clotting)
system is a group of plasma proteins that form a
fibrinous meshwork at an injured or inflamed site. This
protein system (1) prevents the spread of infection to
adjacent tissues, (2) traps microorganisms and foreign
bodies at the site of inflammation for removal by
infiltrating cells (e.g., neutrophils and macrophages), (3)
forms a clot that stops the bleeding, and (4) provides a
framework for future repair and healing.
Which component of the plasma protein system tags
pathogenic microorganisms for destruction by
neutrophils and macrophages? a. Complement cascade b.
, Coagulation system c. Kinin system d. Immune system -
ANSWER-A. C3b (a component of the complement
cascade) adheres to the surface of a pathogenic
microorganism and serves as an efficient opsonin.
Opsonins are molecules that tag microorganisms for
destruction by cells of the inflammatory system, primarily
neutrophils and macrophages.
What is the vascular effect of histamine released from
mast cells? a. Platelet adhesion b. Initiation of the clotting
cascade c. Vasodilation d. Increased endothelial
adhesiveness - ANSWER-C. Histamine, when released
from mast cells, causes vasodilation.
What is an outcome of the complement cascade? a.
Activation of the clotting cascade b. Prevention of the
spread of infection to adjacent tissues c. Inactivation of
chemical mediators such as histamine d. Lysis of
bacterial cell membranes - ANSWER-D. The complement
cascade can be activated by at least three different
means, and its products have four functions: (1)
anaphylatoxic activity, resulting in mast cell
degranulation, (2) leukocyte chemotaxis, (3) opsonization,
and (4) cell lysis.
2 NEWEST 2024 ACTUAL EXAM
131 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES VERIFIED
ANSWERS ALREADY GRADED A+
,Th2 cells produce IL-4 and suppress which cells? a. B
lymphocytes b. Cytotoxic T lymphocytes c. Th1 cells d.
Memory T lymphocytes - ANSWER-C. Th2 cells produce
IL-4, which suppresses only Th1 and Th17 cells through
their IL-4 receptors.
Which action is a purpose of the inflammatory process?
a. To provide specific responses toward antigens b. To
lyse cell membranes of microorganisms c. To prevent
infection of the injured tissue d. To create immunity
against subsequent tissue injury - ANSWER-C. If the
epithelial barrier is damaged, then a highly efficient local
and systemic response (inflammation) is mobilized to
limit the extent of damage, to protect against infection,
and to initiate the repair of damaged tissue. The response
to a specific offending agent is the function of the adaptive
immune response. Lysosomes lyse cell membranes.
Immunity against a subsequent tissue injury occurs
through the action of B cells and T cells.
What causes the edema that occurs during the
inflammatory process? a. Vasodilation of blood vessels b.
Increased capillary permeability c. Endothelial cell
expansion d. Emigration of neutrophils - ANSWER-B. The
,increased flow and capillary permeability result in a
leakage of plasma from the vessels, causing swelling
(edema) in the surrounding tissue and is solely
responsible for inflammation-induced edema.
Vasodilation (increased size of the blood vessels) causes
slower blood velocity and increases blood flow to the
injured site. Endothelial cell contraction (not expansion)
leads to increased capillary permeability. Emigration of
neutrophils to the area of infection/injury leads to
increased destruction of the offending agent.
What plasma protein system forms a fibrinous meshwork
at an inflamed site? a. Complement b. Coagulation c. Kinin
d. Fibrinolysis - ANSWER-B. The coagulation (clotting)
system is a group of plasma proteins that form a
fibrinous meshwork at an injured or inflamed site. This
protein system (1) prevents the spread of infection to
adjacent tissues, (2) traps microorganisms and foreign
bodies at the site of inflammation for removal by
infiltrating cells (e.g., neutrophils and macrophages), (3)
forms a clot that stops the bleeding, and (4) provides a
framework for future repair and healing.
Which component of the plasma protein system tags
pathogenic microorganisms for destruction by
neutrophils and macrophages? a. Complement cascade b.
, Coagulation system c. Kinin system d. Immune system -
ANSWER-A. C3b (a component of the complement
cascade) adheres to the surface of a pathogenic
microorganism and serves as an efficient opsonin.
Opsonins are molecules that tag microorganisms for
destruction by cells of the inflammatory system, primarily
neutrophils and macrophages.
What is the vascular effect of histamine released from
mast cells? a. Platelet adhesion b. Initiation of the clotting
cascade c. Vasodilation d. Increased endothelial
adhesiveness - ANSWER-C. Histamine, when released
from mast cells, causes vasodilation.
What is an outcome of the complement cascade? a.
Activation of the clotting cascade b. Prevention of the
spread of infection to adjacent tissues c. Inactivation of
chemical mediators such as histamine d. Lysis of
bacterial cell membranes - ANSWER-D. The complement
cascade can be activated by at least three different
means, and its products have four functions: (1)
anaphylatoxic activity, resulting in mast cell
degranulation, (2) leukocyte chemotaxis, (3) opsonization,
and (4) cell lysis.
