Histochemical studies on the architecture of rat masseter muscle.
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- KATSURA SHIGERU
- Department of Oral Anatomy, School of Dentistry, Tokushima University
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- ISHIZUKA HIROSHI
- Department of Oral Anatomy, School of Dentistry, Tokushima University
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- MATSUMOTO HAYASHI
- Department of Oral Anatomy, School of Dentistry, Tokushima University
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- NAKAE YOSHIKO
- Department of Oral Anatomy, School of Dentistry, Tokushima University
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The histochemical organization observed in cross sections of rat masseter muscle was investigated by staining for succinic dehydrogenase. Most primary fasciculi were composed of three muscle fiber types: type A, B and C classified by Stein and Padykula (29). Significant differences in the percentage of type B plus type C fibers (Pbc) and the percentage of type C fibers (Pc) were found in different regions (origin, belly, and insertion), and in different parts (the deepest masseter, anterior deep and posterior deep masseter, and superficial masseter). Moreover, marked differences were found in the percentage distributions of Pbc and Pc of different primary fasciculi in each part of the masseter. In general, the average Pbc and Pc values were highest in the deepest masseter, intermediate in the superficial masseter, and lowest in the deep masseter in the origin and belly portions. In aging rats the three kinds of muscle fibers were easier to distinguish and differences in the average Pbc and Pc values in different muscle parts were greater. Moreover, primary fasciculi with high Pbc and Pc values, or those with low Pbc and Pc values were more numerous than in young adult rats.
収録刊行物
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- Acta Histochemica et Cytochemica
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Acta Histochemica et Cytochemica 15 (4), 527-536, 1982
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詳細情報 詳細情報について
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- CRID
- 1390001204862344064
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- NII論文ID
- 110003149009
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- NII書誌ID
- AA00508022
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- ISSN
- 13475800
- 00445991
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可