| Effect of subglottic pressure on fundamental frequency of the canine larynx with active muscle tensions. | |
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MedLine Citation:
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PMID: 7944175 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The relation between subglottic pressure and the fundamental frequency of vocal fold vibration was studied by means of evoked phonation in an in vivo canine model. The evoked-phonation model involved electrical stimulation of the midbrain that resulted in consistent responses by respiratory and laryngeal musculature, accompanied by phonation. The dynamic stiffness properties of the vocal folds, especially the "cover," were investigated by delivering various amounts of air pressure to the larynx from an opening in the trachea. The fundamental frequency of vocal fold vibration increased linearly with subglottic pressure. The slopes ranged from 22.4 to 118.7 Hz per kilopascal in 7 animals. The results indicated that the dependence of fundamental frequency on subglottic pressure is a passive mechanical phenomenon. |
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Authors:
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T Y Hsiao; N P Solomon; E S Luschei; I R Titze; K Liu; T C Fu; M M Hsu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Annals of otology, rhinology, and laryngology Volume: 103 ISSN: 0003-4894 ISO Abbreviation: Ann. Otol. Rhinol. Laryngol. Publication Date: 1994 Oct |
Date Detail:
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Created Date: 1994-11-16 Completed Date: 1994-11-16 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0407300 Medline TA: Ann Otol Rhinol Laryngol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 817-21 Citation Subset: AIM; IM |
Affiliation:
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Department of Otolaryngology, College of Medicine, National Taiwan University, Taipei, Republic of China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Dogs Electric Stimulation Electromyography Glottis / physiology* Laryngeal Muscles / physiology* Mesencephalon / physiology Muscle Tonus / physiology Phonation / physiology* Pressure Respiration / physiology Vocal Cords / physiology* Vocalization, Animal / physiology |
| Grant Support | |
ID/Acronym/Agency:
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P60 DC00976/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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