During an IgE-mediated hypersensitivity reaction, what causes bronchospasm?
A)Bronchial edema caused by the chemotactic factor of anaphylaxis
B)Bronchial edema caused by binding of the cytotropic antibody
C)Smooth muscle contraction caused by histamine bound to H1 receptors
D)Smooth muscle contraction caused by histamine bound to H2 receptors

Question

Quizplus · Accepted Answer

During an IgE-mediated hypersensitivity reaction, smooth muscle contraction caused by histamine bound to H₁ receptors results in bronchospasms. The bronchospasm is not caused by edema or by histamine binding to H₂ receptors.

During an IgE-Mediated Hypersensitivity Reaction, What Causes Bronchospasm