Eeffect of Recurrent Laryngeal Nerve on Differentiation of Intrinsic Laryngeal Muscle Fibers
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- Hangai Kimihiko
- Department of Otolaryngology, Asahikawa Medical School, Asahikawa, Japan
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- Kobayashi Yoshifumi
- Department of Otolaryngology, Asahikawa Medical School, Asahikawa, Japan
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- Nonaka Satoshi
- Department of Otolaryngology, Asahikawa Medical School, Asahikawa, Japan
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- Unno Tokuji
- Department of Otolaryngology, Asahikawa Medical School, Asahikawa, Japan
Bibliographic Information
- Other Title
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- 内喉頭筋線維の分化に及ぼす支配神経の影響
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Abstract
The purpose of this study is to analyse the effect of recurrent laryngeal nerve denervation on postnatal developement of intrinsic laryngeal muscle fibers. The composition of muscle fiber types in the medial component of thyroarytenoid muscle (m-TA), the lateral component of thyroarytenoid muscle (1-TA) and the posterior cricoarytenoid muscle (PCA) has been compared between normal and denervated rats using myosin ATPase stain method.<BR>With denervated rats, Type 1 fibers disappear rapidly after denervation. Type 2A fibers do not appear through the observed period. On the other hand, the developmental changes of Type 2B fibers are almost similar to those of normal rats. The denervation prevents the differentiation of Type 1 and 2A fibers, but almost does not change the differentiation of Type 2B fibers.<BR>These results suggest that the recurrent laryngeal nerve has an important role at its specified course of postnatal differentiation of intrinsic laryngeal muscle fibers.
Journal
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- Koutou (THE LARYNX JAPAN)
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Koutou (THE LARYNX JAPAN) 9 (2), 120-124, 1997
The Japan Laryngological Association
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Keywords
Details 詳細情報について
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- CRID
- 1390001205462661248
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- NII Article ID
- 130004647422
- 10008576180
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- NII Book ID
- AN10200295
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- ISSN
- 09156127
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed