1. 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 immuni
...
1. 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
ANS: 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 other options do not accurately identify a purpose of the inflammatory process.
PTS: 1 REF: Page 191
5. What causes the edema that occurs during the inflammatory process?
a. Vasodilation of blood vessels c. Endothelial cell contraction
b. Increased capillary permeability d. Emigration of neutrophils
ANS: 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.
PTS: 1 REF: Page 195
6. What process causes heat and redness to occur during the inflammatory process?
a. Vasodilation of blood vessels c. Decreased capillary permeability
b. Platelet aggregation d. Endothelial cell contraction
ANS: A
The increased blood flow as a result of vasodilation and increasing concentration of red cells at the site of inflammation cause locally increased warmth and redness. The other options do not accurately identify the process that results in inflammatory redness and heat.
PTS: 1 REF: Page 195
9. Which component of the plasma protein system tags pathogenic microorganisms for destruction by neutrophils and macrophages?
a. Complement cascade c. Kinin system
b. Coagulation system d. Immune system
ANS: 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. The other options do not accurately identify a component capable of tagging pathogenic microorganisms.
PTS: 1 REF: Pages 197-199
12. The function of opsonization related to the complement cascade is to:
a. Tag of pathogenic microorganisms for destruction by neutrophils and
macrophages.
b. Process pathogenic microorganisms so that activated lymphocytes can be created
for acquired immunity.
c. Destroy glycoprotein cell membranes of pathogenic microorganisms.
d. Promote anaphylatoxic activity, resulting in mast cell degranulation.
CONTINUED........
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