,UTA NURS 5315 Exam 2 | Advanced Pathophysiology (2026)
Q&A
1. Which of the following best describes the primary purpose of the inflammatory response?
A) To provide specific responses toward identified antigens
B) To limit the extent of tissue damage and promote healing
C) To produce antibodies against invading microorganisms
D) To establish immunological memory for future exposures
Correct Answer: To limit the extent of tissue damage and promote healing
Rationale: The inflammatory response is a protective mechanism designed to limit the extent
of tissue damage, eliminate the injurious agent, and promote healing. It involves vascular and
cellular components that deliver leukocytes and plasma proteins to the injured site. Specific
antigen responses, antibody production, and immunological memory are functions of the
adaptive immune system, not the primary purpose of inflammation.
2. What is the primary role of mast cells in the inflammatory process?
A) Phagocytosing bacteria and cellular debris
B) Producing antibodies against pathogens
C) Releasing histamine and other mediators that initiate inflammation
D) Directly killing infected cells through cytotoxicity
Correct Answer: Releasing histamine and other mediators that initiate inflammation
Rationale: Mast cells are located in loose connective tissue close to blood vessels and
contain granules filled with histamine and other inflammatory mediators. When activated,
they degranulate and release these substances, initiating the inflammatory process by causing
vasodilation and increasing vascular permeability. Phagocytosis is performed by neutrophils
and macrophages, antibody production by B cells, and cytotoxic killing by T cells.
,3. According to the principles of inflammation, what is the primary effect of histamine
release?
A) Vasoconstriction and decreased blood flow
B) Vasodilation and increased vascular permeability
C) Chemotaxis of neutrophils to the injury site
D) Phagocytosis of invading pathogens
Correct Answer: Vasodilation and increased vascular permeability
Rationale: Histamine causes vasodilation of arterioles, which increases blood flow to the site
of injury, producing erythema and warmth. It also increases vascular permeability, allowing
plasma proteins and leukocytes to enter the tissue, causing swelling. Chemotaxis and
phagocytosis are separate processes mediated by other factors.
4. In the context of acute inflammation, what is the function of cytokines?
A) They are soluble factors that regulate innate and adaptive immune responses
B) They directly phagocytose pathogens at the site of injury
C) They form the structural framework for new tissue growth
D) They produce antibodies against specific antigens
Correct Answer: They are soluble factors that regulate innate and adaptive immune
responses
Rationale: Cytokines are soluble signaling molecules that regulate innate and adaptive
resistance by affecting neighboring cells. They can be proinflammatory or anti-inflammatory
and can act quickly or with delayed effects. Phagocytosis is performed by leukocytes,
structural framework formation by fibroblasts, and antibody production by B cells.
5. Which of the following best characterizes the vascular phase of acute inflammation?
, A) Leukocyte migration and phagocytosis at the injury site
B) Vasodilation and increased capillary permeability
C) Antibody production and antigen presentation
D) Fibroblast proliferation and collagen synthesis
Correct Answer: Vasodilation and increased capillary permeability
Rationale: The vascular phase of acute inflammation involves vasodilation of arterioles and
increased capillary permeability, which increase blood flow and allow plasma proteins and
leukocytes to enter the injured tissue. Leukocyte migration and phagocytosis occur during the
cellular phase. Antibody production is part of adaptive immunity, and fibroblast proliferation
occurs during healing.
6. What is the most likely consequence if the inflammatory response fails to eliminate an
injurious agent?
A) Complete resolution with no tissue damage
B) Chronic inflammation with persistent tissue destruction
C) Immediate activation of adaptive immunity
D) Enhanced tissue regeneration and repair
Correct Answer: Chronic inflammation with persistent tissue destruction
Rationale: When the inflammatory response cannot eliminate an injurious agent, the
condition transitions to chronic inflammation. This involves macrophages, lymphocytes, and
ongoing tissue destruction and repair over a prolonged period. Complete resolution occurs
when the agent is removed, and adaptive immunity is not always sufficient to eliminate the
agent.
7. A researcher is studying leukocyte migration during inflammation. What is the process by
which leukocytes move toward chemical signals called?
Q&A
1. Which of the following best describes the primary purpose of the inflammatory response?
A) To provide specific responses toward identified antigens
B) To limit the extent of tissue damage and promote healing
C) To produce antibodies against invading microorganisms
D) To establish immunological memory for future exposures
Correct Answer: To limit the extent of tissue damage and promote healing
Rationale: The inflammatory response is a protective mechanism designed to limit the extent
of tissue damage, eliminate the injurious agent, and promote healing. It involves vascular and
cellular components that deliver leukocytes and plasma proteins to the injured site. Specific
antigen responses, antibody production, and immunological memory are functions of the
adaptive immune system, not the primary purpose of inflammation.
2. What is the primary role of mast cells in the inflammatory process?
A) Phagocytosing bacteria and cellular debris
B) Producing antibodies against pathogens
C) Releasing histamine and other mediators that initiate inflammation
D) Directly killing infected cells through cytotoxicity
Correct Answer: Releasing histamine and other mediators that initiate inflammation
Rationale: Mast cells are located in loose connective tissue close to blood vessels and
contain granules filled with histamine and other inflammatory mediators. When activated,
they degranulate and release these substances, initiating the inflammatory process by causing
vasodilation and increasing vascular permeability. Phagocytosis is performed by neutrophils
and macrophages, antibody production by B cells, and cytotoxic killing by T cells.
,3. According to the principles of inflammation, what is the primary effect of histamine
release?
A) Vasoconstriction and decreased blood flow
B) Vasodilation and increased vascular permeability
C) Chemotaxis of neutrophils to the injury site
D) Phagocytosis of invading pathogens
Correct Answer: Vasodilation and increased vascular permeability
Rationale: Histamine causes vasodilation of arterioles, which increases blood flow to the site
of injury, producing erythema and warmth. It also increases vascular permeability, allowing
plasma proteins and leukocytes to enter the tissue, causing swelling. Chemotaxis and
phagocytosis are separate processes mediated by other factors.
4. In the context of acute inflammation, what is the function of cytokines?
A) They are soluble factors that regulate innate and adaptive immune responses
B) They directly phagocytose pathogens at the site of injury
C) They form the structural framework for new tissue growth
D) They produce antibodies against specific antigens
Correct Answer: They are soluble factors that regulate innate and adaptive immune
responses
Rationale: Cytokines are soluble signaling molecules that regulate innate and adaptive
resistance by affecting neighboring cells. They can be proinflammatory or anti-inflammatory
and can act quickly or with delayed effects. Phagocytosis is performed by leukocytes,
structural framework formation by fibroblasts, and antibody production by B cells.
5. Which of the following best characterizes the vascular phase of acute inflammation?
, A) Leukocyte migration and phagocytosis at the injury site
B) Vasodilation and increased capillary permeability
C) Antibody production and antigen presentation
D) Fibroblast proliferation and collagen synthesis
Correct Answer: Vasodilation and increased capillary permeability
Rationale: The vascular phase of acute inflammation involves vasodilation of arterioles and
increased capillary permeability, which increase blood flow and allow plasma proteins and
leukocytes to enter the injured tissue. Leukocyte migration and phagocytosis occur during the
cellular phase. Antibody production is part of adaptive immunity, and fibroblast proliferation
occurs during healing.
6. What is the most likely consequence if the inflammatory response fails to eliminate an
injurious agent?
A) Complete resolution with no tissue damage
B) Chronic inflammation with persistent tissue destruction
C) Immediate activation of adaptive immunity
D) Enhanced tissue regeneration and repair
Correct Answer: Chronic inflammation with persistent tissue destruction
Rationale: When the inflammatory response cannot eliminate an injurious agent, the
condition transitions to chronic inflammation. This involves macrophages, lymphocytes, and
ongoing tissue destruction and repair over a prolonged period. Complete resolution occurs
when the agent is removed, and adaptive immunity is not always sufficient to eliminate the
agent.
7. A researcher is studying leukocyte migration during inflammation. What is the process by
which leukocytes move toward chemical signals called?
