Journal article
Three-Dimensional Anatomic Characterization of the Canine Laryngeal Abductor and Adductor Musculature
Annals of otology, rhinology & laryngology, Vol.109(5), pp.505-513
05/01/2000
DOI: 10.1177/000348940010900512
PMID: 10823482
Abstract
The biomechanics of vocal fold abduction and adduction during phonation, respiration, and airway protection are not completely understood. Specifically, the rotational and translational forces on the arytenoid cartilages that result from intrinsic laryngeal muscle contraction have not been fully described. Anatomic data on the lines of action and moment arms for the intrinsic laryngeal muscles are also lacking. This study was conducted to quantify the 3-dimensional orientations and the relative cross-sectional areas of the intrinsic abductor and adductor musculature of the canine larynx. Eight canine larynges were used to evaluate the 3 muscles primarily responsible for vocal fold abduction and adduction: the posterior cricoarytenoid, the lateral cricoarytenoid, and the interarytenoid muscles. Each muscle was exposed and divided into discrete fiber bundles whose coordinate positions were digitized in 3-dimensional space. The mass, length, relative cross-sectional area, and angle of orientation for each muscle bundle were obtained to allow for the calculations of average lines of action and moment arms for each muscle. This mapping of the canine laryngeal abductor and adductor musculature provides important anatomic data for use in laryngeal biomechanical modeling. These data may also be useful in surgical procedures such as arytenoid adduction.
Details
- Title: Subtitle
- Three-Dimensional Anatomic Characterization of the Canine Laryngeal Abductor and Adductor Musculature
- Creators
- Corey W. Mineck - Memphis Health CenterRoger Chan - Iowa City Public LibraryNiro Tayama - Tokyo, JapanIngo R. Titze - Iowa City Public Library
- Resource Type
- Journal article
- Publication Details
- Annals of otology, rhinology & laryngology, Vol.109(5), pp.505-513
- DOI
- 10.1177/000348940010900512
- PMID
- 10823482
- ISSN
- 0003-4894
- eISSN
- 1943-572X
- Number of pages
- 9
- Language
- English
- Date published
- 05/01/2000
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719745502771
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