Glottis
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| Glottis | |
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| Arytenoid cartilage | |
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| Glottis positions | |
| MeSH | Glottis |
| Dorlands/Elsevier | g_08/12395255 |
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The space between the vocal cords is called the glottis.
Function
As the vocal cords vibrate, the resulting vibration produces a "buzzing" quality to the speech, called voice or voicing.
Sound production involving only the glottis is called glottal. English has a voiceless glottal fricative spelled "h". In many accents of English the glottal stop (made by pressing the folds together) is used as a variant allophone of the phoneme /t/ (and in some dialects, occasionally of /k/ and /p/); in some languages, this sound is a phoneme of its own.
Skilled players of the Australian didgeridoo restrict their glottal opening in order to produce the full range of timbres available on the instrument. [1]
The vibration produced is an essential component of voiced consonants as well as vowels. If the vocal folds are drawn apart, air flows between them causing no vibration, as in the production of voiceless consonants.
- Voiced consonants include /w/, /v/, /z/, /ʒ/, /ʤ/, /ð/, /b/, /d/, and /g/.
- Voiceless consonants include /h/, /ʍ/, /f/, /s/, /ʃ/, /ʧ/, /θ/, /p/, /t/, and /k/.
Additional images
 Larynx |
 The entrance to the larynx, viewed from behind. |
 The entrance to the larynx. |
See also
External links
General anatomy of neck (Throat • Pharynx • Larynx) | |
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| Cartilages | Cricoid • Thyroid (Laryngeal prominence) • Epiglottis • Arytenoid • Cuneiform • Corniculate |
| Ligaments | extrinsic ligaments: Thyrohyoid membrane (Lateral thyrohyoid ligament, Median thyrohyoid ligament) • Hyoepiglottic ligament • Cricotracheal ligament intrinsic ligaments: Cricothyroid ligament |
| Folds and related structures | folds: (Glossoepiglottic, Aryepiglottic, Vocal, Vestibular) Vocal ligament • Ventricle of the larynx • Infraglottic cavity • Vestibule of larynx • Rima glottidis • Glottis |
| Triangles of the neck | Anterior of the neck (Muscular, Carotid, Submandibular, Submental)
Posterior of the neck (Occipital, Subclavian) Suboccipital |
| Fascia | Deep cervical fascia (Pretrachial fascia, Prevertebral fascia, Investing layer) • Carotid sheath • Buccopharyngeal fascia |
| Other | Retropharyngeal space |
Notes
- ↑ See "Acoustics: The vocal tract and the sound of a didgeridoo", by Tarnopolsky et al. in Nature 436, 39 (7 July 2005))
References of Glottis Simulator
de Menezes Lyra R. Glottis simulator. Anesth Analg. 1999 Jun;88(6):1422-3.[2]
Smith, N Ty. Simulation in anesthesia: the merits of large simulators versus small simulators. Current Opinion in Anaesthesiology. 13(6):659-665, December 2000.
ca:Glotis de:Glottiseo:Glotogl:Glote it:Glottide ko:성문 (몸) nl:Glottisfi:Äänirako sv:Röstspringa
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
