Glottal consonants are consonants using the glottis as their primary articulation. Most laryngeal cancers originate in the glottis. The epiglottis gets its name from being above () the glottis (). There is the possibility of asphyxiation because of laryngeal oedema and stenosis of the glottis. First, it hisses, or forcibly exhales through a glottis or extension of the windpipe. Polypterids possess paired lungs which connect to the esophagus via a glottis. This is achieved by blowing air from the glottis through the nasal cavities. Retching involves a deep inspiration against a closed glottis. In phonetics, aleph originally represented the onset of a vowel at the glottis. The infraglottic cavity is the open space below the glottis. They are part of the glottis which includes the rima glottidis. They require movement of the glottis during pronunciation and have a staccato sound. During the hold, the signer also stops the breath by closing the glottis. In others, the full length of the glottis opens and closes in each cycle. The state of the glottis can be finely transcribed with diacritics.