| The glottis suddenly closes and stops the inflow of air resulting in the sound of a hiccup. |
| Precise coordination of the closure of the glottis and the action of the vocal cords produces the voice. |
| In bulbar patients, a nonfunctioning glottis can cause an uncomfortable choking sensation, making mouth pressure measurements difficult. |
| Cough, pronounced coff, is onomatopoeic in origin, from the sound of the closure of the glottis plus the sound of air whizzing or wheezing through the trachea. |
| During the compressive phase, the glottis is closed and the expiratory muscles start to contract. |
| Interestingly, Valsalva maneuvers against pinched nostrils and closed glottis did, however, produce upward deflection of the eyes. |
