Question

Which of the following statements best captures the etiology of the acute response phase of extrinsic (atopic) asthma?A. IgG production is heightened as a consequence of exposure to an allergen.
B. Airway remodeling results in airflow limitations.
C. Epithelial injury and edema occur along with changes in mucociliary function.
D. Chemical mediators are released from presensitized mast cells.

Answer 1

Answer:

D. Chemical mediators are released from presensitized mast cells.

Explanation:

mast cells play an important role in allergic reactions and responsible for releasing histamines and potent mediators tat directly affect inflammatory cells. the chemical mediators released by presentized mast cells play important role in etiology of the acute response phase of extrinsic (atopic) asthma.