811. Histamine is found in:
A. Basophils
B. Neutrophils
C. Eosinophils
D. Monocytes
E. All of the above
812. Histamine release is triggered by:
A. Trauma
B. Anaphylatoxin
C. IL-l
D. Substance P
E. All of the above
813. Histamine is responsible for:
A. Chemotaxis
B. Opsonization
C. Immediate phase of increased vascular permeability
D. Delayed phase of increased vascular permeability
E. All of the above
814. C5a does NOT act as:
A. Anaphylatoxin
B. Opsonin
C. Chemotaxin
D. Activator of the Lipoxygenase pathway
E. None of the above
815. Alternative pathway of the complement system is activate by the following EXCEPT:
A. Endotoxin
B. IgA aggregate
C. Microbe surface
D. Antigen-IgM complex
E. Complex polysaccharide
816. Activation of Hagemen factor results in:
A. Formation of bradykinin
B. Formation of plasmin
C. Thrombin activation
D. Formation of fibrin degradation products (FDP)
E. All of the above
817. Which of the following product of cyclo-oxygenase pathway produce vasoconstri ction?
A. Thromboxane A2
B. PgD2 C. PgE2
D. PgF2
E. Prostacyclin
818. Which of the following is specifically found in platelet?
A. Prostacyclin
B. Thromboxane A2
C. PgD2 D. PgE2
E. PgF2
819. Which of the following is the action of leukotriene D4?
A. Chemotaxin
B. Vasodilation
C. Increased vascular permeability
D. Bronchodilation
E. Platelet aggregation
820. Platelet activating factor (P AF) is found in:
A. Basophil
B. Polymorphonuclear neutrophil
C. Monocyte
D. Endothelial cell
E. All of the above