Document Detail


Ultrastructure of the vocal process of the arytenoid cartilage.
MedLine Citation:
PMID:  10903046     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An investigation of the ultrastructure of the vocal process of the arytenoid cartilage was performed on excised human adult larynges. The results are summarized as follows. 1) The size of the chondrocytes is small and their density is high at the tip of the vocal process. 2) The size of the chondrocytes increases and their density decreases toward the posterior portion of the vocal process. 3) At the tip of the vocal process, the collagenous fibers are thin and run in various directions. 4) The thickness of the collagenous fibers increases and they form thick bundles toward the posterior portion of the vocal process. 5) The elastic fibers are dense at the tip of the vocal process, and their number decreases toward the posterior portion of the vocal process. 6) The elastic fibers, which are slender, branched, and anastomosed to form a loose network, run among the collagenous fibers at the tip of the vocal process. 7) Elaunin fibers are the predominant elastic fibers at the tip of the vocal process. 8) Even in the hyaline cartilage portion of the vocal process, elastic fibers are found. 9) The vocal processes are firm in forming the framework of the glottis and are more pliable toward the tip. 10) The 3-dimensional structure of the gradual changes in stiffness between the vocal fold and the vocal process makes a functional contribution to the roles of the vocal folds and the vocal processes.
Authors:
K Sato; M Hirano; T Nakashima
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of otology, rhinology, and laryngology     Volume:  109     ISSN:  0003-4894     ISO Abbreviation:  Ann. Otol. Rhinol. Laryngol.     Publication Date:  2000 Jul 
Date Detail:
Created Date:  2000-08-01     Completed Date:  2000-08-01     Revised Date:  2006-05-15    
Medline Journal Info:
Nlm Unique ID:  0407300     Medline TA:  Ann Otol Rhinol Laryngol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  650-3     Citation Subset:  AIM; IM    
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Kurume University, School of Medicine, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Arytenoid Cartilage / ultrastructure*
Collagen / ultrastructure
Female
Humans
Male
Microscopy, Electron
Middle Aged
Vocal Cords / ultrastructure
Chemical
Reg. No./Substance:
9007-34-5/Collagen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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