| Answer | Crossword Clue |
|---|---|
| LOUVER | Slitlike opening for ventilation. |
| glottises | The part of the larynx consisting of the vocal cords and the slitlike opening between them. It affects voice modulation through expansion or contraction |
| AIRHOLE | Ventilation opening |
| gratings | A framework of parallel or crossed bars, typically preventing access through an opening while permitting communication or ventilation |
