What Is the Physiologic Mechanism of Histamine

question 47

Multiple Choice

What is the physiologic mechanism of histamine?

• A) Histamine is released when the allergen-reagin complex attaches to the surface of basophils, increasing vascular dilation and permeability
• B) Histamine is released when the allergen-reagin complex attaches to the surface of tissue mast cells, increasing vascular dilation and permeability
• C) Histamine is released when the allergen-reagin complex attaches to the surface of eosinophils, increasing vascular dilation and permeability
• D) Histamine is released when the allergen-reagin complex attaches to the surface of tissue mast cells, decreasing vascular dilation and permeability

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