In a bronchiole, the release of histamine by activated mast cells and basophils __________.

a. stimulates bronchodilator and decreases airflow
b. stimulates bronchoconstriction and increase airflow
c. stimulates bronchodilator and improves airflow
d. increases bronchoconstriction and decrease airflow


Answer: d. increases bronchoconstriction and decrease airflow

Anatomy & Physiology

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