bronchomotor tone

bronchomotor tone

the state of contraction or relaxation of the smooth muscle in the bronchial walls that regulates the caliber of the airways.

bronchomotor

affecting the caliber of the bronchi.

bronchomotor tone
tone of the bronchial muscles as in bronchospasm.
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References in periodicals archive ?
Over a relatively brief periods, resistance may change with accumulating secretions or variations of bronchomotor tone, and effective respiratory system compliance changes with body position.
improvement in lung function--as inflammation subsides, resting bronchomotor tone changes and the airways spontaneously dilate; bronchodilator responses are often also better.