bronchoconstriction

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Related to bronchial constriction: Airway constriction

bronchoconstriction

 [brong″ko-kon-strik´shun]
narrowing of a bronchus as a result of smooth muscle contraction, as in asthma.

bron·cho·con·stric·tion

(brong'kō-kon-strik'shŭn),
Reduction in the caliber of a bronchus or bronchi, usually referring to a dynamic process as in asthma and emphysema, rather than a fixed constriction (the latter is a bronchial stenosis). Compare: bronchospasm.

bronchoconstriction

/bron·cho·con·stric·tion/ (brong″ko-kun-strik´shun) narrowing of air passages of the lungs from smooth muscle contraction, as in asthma.

bronchoconstriction

Etymology: Gk, bronchos, windpipe; L, constringere, to draw tight
a narrowing of the lumen of the bronchi, restricting airflow to and from the lungs.

bronchoconstriction

The narrowing of a bronchus due to the contraction of the surrounding smooth muscle, which may be caused by either histaminic-H1/2 or muscarinic (M1/2/3) receptors.

bronchoconstriction

Narrowing of a bronchus, bronchostenosis

bron·cho·con·stric·tion

(brong'kō-kŏn-strik'shŭn)
Constriction of the bronchi.

bronchoconstriction

Contraction of the circular muscles in the walls of the bronchi, so narrowing the bore of the tubes and restricting air entry. See also BRONCHOSPASM.

bron·cho·con·stric·tion

(brong'kō-kŏn-strik'shŭn)
Constriction of the bronchi.

bronchoconstriction (brong´kō-kənstrik´shən),

n the reduction of the caliber of the bronchi.

bronchoconstriction

bronchostenosis.
References in periodicals archive ?
Asthma is a chronic inflammatory disorder characterized by acute bronchial constriction of the airways that affects 17 million Americans, including 5 million children.
Scientists know that asthma involves an immune response to inhaled allergens that results in inflammation, mucus secretion and bronchial constriction.
An acute asthmatic attack is the clinical state in which a patient suffers from acute bronchial constriction which has been precipitated by a stimulus such as an allergen, exercise, infection, irritant, temperature change or stress.
This triggers bronchial constriction and general airway inflammation.
A Phase II clinical trial conducted by Dr Joy Conway and Professor Stephen Holgate at the University of Southampton School of Medicine showed that all asthma patients who received AP0016 before exposure to inhaled allergens were able to completely eliminate early asthmatic responses, characterized by shortness of breath caused by bronchial constriction.