For when a solution of continuity occurs in the lungs, the inspiratory and expiratory forces fail.
It is noteworthy that all the utterances of sound are expiratory.
Schapiro has reported a case of expiratory "spasm" due to contraction of the buccinators.
We have already pointed out that the vocal bands are set into vibration solely by the expiratory blast of air.
At this stage, too, expiratory laryngeal noises are occasionally superadded.
So long as the expiratory pressure is steadily maintained, this tone may be held, and yet no strain is imposed on the vocal cords.
In another instance inspiratory hiccoughs and expiratory eructations co-existed.
In this way is regulated the amount of the fleshy mass of the vocal cords exposed to the expiratory blast.
In other words, the expiratory energy is transformed into energy of motion.
The power of the expiratory blast is just what it would be if one unit of strength were exerted in an "uncontrolled" expiration.
expiratory ex·pi·ra·to·ry (ĭk-spī'rə-tôr'ē)
Of, relating to, or involving the expiration of air from the lungs.