bronchoconstriction

(noun)

The tightening of the smooth muscle of the bronchi due to parasympathetic nervous system stimulation, excess mucus production, inflammation, or allergic reactions.

Related Terms

Examples of bronchoconstriction in the following topics:

  • Bronchi and Subdivisions

    • A unique characteristic of the bronchi and bronchioles is bronchoconstriction, in which the smooth muscle of the bronchi or bronchioles tightens.
    • It is a symptom of diseases such as bronchitis (chronic inflammation and mucus production in the bronchi) and asthma (an acute attack of bronchoconstriction, often allergic).
    • Bronchoconstriction is treated with anti-inflammatory drugs, such as corticosteroids, and prevented by maintaining lung health, such as through avoiding smoking, air pollution, and airborne allergens.