bronchoconstriction


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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 ?
1] from the resting value were observed, participants inhaled 200 [micro]g salbutamol, with spirometry measured 10 minutes post inhalation to confirm bronchoconstriction was reversible.
BothIntravenous and Inhaled Lidocaine AttenuateReflex Bronchoconstriction but at Different PlasmaConcentrations.
Patients' quality of respirations also should be assessed to determine signs and symptoms of bronchoconstriction (Wilson et al.
Afferent neural pathways in cough and reflex bronchoconstriction.
Furthermore, athletes who train hard, particularly long distance runners, are frequently exposed to factors such as cold air (38) and aeroallergens (39) which are known to exacerbate bronchoconstriction.
5 The most likely mechanism of inhaled insulin-induced bronchoconstriction is that insulin modulates the mast cells degranulation and the subsequently increased release of histamine and contractile prostaglandins are responsible for allergic inflammation of airways.
emergent immunogenicity and no bronchoconstriction occurred.
About 10%-20% of the general population and up to 90% of people previously diagnosed with asthma have exercise-induced bronchoconstriction (EIB).
Elizabeth Townsend, PhD, of Columbia University and her colleagues studied the effects of 6-gingerol, 8-gingerol and 6-shogoal in human airway smooth muscle tissue samples treated with acetylcholine, a neurotransmitter that causes bronchoconstriction.
Additional independent risk factors include concomitant viral upper respiratory tract infections in up to 50% of cases; medical nonadherence or insufficient use of prescribed corticosteroids; strong and constant allergen exposures, especially to pets in severely atopic individuals; inhalation of irritants such as smoke and paint; and prior reports of exercise-induced bronchoconstriction.
Washington, June 13 ( ANI ): Taking Vitamin C may substantially reduce bronchoconstriction caused by exercise, suggested a researcher from the University of Helsinki, Finland.