There are two vocal cords with a slit between them called the glottis.
As the diaphragm and other muscles involved in breathing press against the lungs, the glottis suddenly opens, producing an explosive outflow of air at speeds greater than 100 miles (160 km) per hour.
A cough begins with a deep breath in, at which point the opening between the vocal cords at the upper part of the larynx (glottis) shuts, trapping the air in the lungs.
This action causes the glottis to contract, and this in turn causes a vibration when the cat inhales and exhales.
The position of the vocal cords and the size of the glottis determine the nature of the sound.
GREENSHANK, one of the largest of the birds commonly known as sandpipers, the Tetanus glottis of most ornithological writers.
Within the glottis is a pair of membranous folds which serve as vocal cords; all the Crocodilia are possessed of a loud, bellowing voice.
The effects of the ingestion of large quantities may be so rapid that death may take place in a couple of hours, owing to collapse, consequent on perforation of the walls of the oesophagus or stomach, or from asphyxia due to swelling of the glottis consequent on some of the acid having entered the larynx.
Phractus, Amphignathodon, Amphodus, Cerato- Gl, Glottis.
Bb l, Ossified second Gl, Glottis.