1991年11月
A POSSIBLE MECHANISM OF MECHANORECEPTION IN RUFFINI ENDINGS IN THE PERIODONTAL-LIGAMENT OF HAMSTER INCISORS
JOURNAL OF COMPARATIVE NEUROLOGY
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- ,
- ,
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- 巻
- 313
- 号
- 2
- 開始ページ
- 368
- 終了ページ
- 376
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/cne.903130211
- 出版者・発行元
- WILEY-LISS
The topographical relationship between Ruffini endings and the surrounding collagen fibers in the periodontal ligament of hamster incisors was investigated by means of both immunohistochemistry for neurofilament protein (NFP) and electron microscopy. Periodontal Ruffini endings, a type of stretch receptor, were present exclusively in the alveolar half of the periodontal ligament. Their axon terminals were densely and regularly associated with transverse collagen fibers, possibly forming a mechanoreceptive complex. Since blood sinuses with frequent anastomoses extended throughout the alveolus-related part, the densely innervated collagen bundles were separated from each other by the vascular spaces. Electron microscopic observation of specimens stained with tannic acid revealed a linkage between the axon terminals of the Ruffini endings and the surrounding collagen filaments. The axon terminals were enveloped by multiple layers of the basal lamina, which were penetrated by collagen filaments. The irregularly arranged collagen filaments were sandwiched between electron-dense laminae of the multilayered basal lamina. The possible mechanism of mechanoreception by the periodontal Ruffini endings is discussed on the basis of the immunohistochemical and ultrastructural findings.
- リンク情報
- ID情報
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- DOI : 10.1002/cne.903130211
- ISSN : 0021-9967
- PubMed ID : 1765585
- Web of Science ID : WOS:A1991GP85100010