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Bronchoconstriction- What is Bronchoconstriction?


Updated June 21, 2009

Bronchoconstriction- What is Bronchoconstriction?


Photo © A.D.A.M.
Definition: Bronchoconstriction is the medical term for the narrowing of the airways that occurs in an asthma attack.

The bronchioles or tubes that air flows into and out of the lungs are surrounded by a type of muscle called smooth muscle. In asthmatics, these muscles often squeeze tighter in reaction to certain triggers and the inflammation associated with worsening asthma. As the bronchioles narrow, blocking airflow and making it harder to breathe, you may develop other symptoms such as coughing, wheezing, and shortness of breath.

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