Maxillofacial Plastic and Reconstructive Surgery
- Volume 15 Issue 4
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- Pages.281-301
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- 1993
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- 2288-8101(pISSN)
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- 2288-8586(eISSN)
ELECTRON MICROSCOPIC STUDY OF SLOWLY ADAPTING PERIODONTAL MECHANORECEPTIVE PRIMARY AFFERENT FIBERS WITHIN THE SUBNUCLEUS ORALIS OF THE CAT
서순응형 치근막 일차구심성 신경섬유 종말부의 Subnucleus oralis에서의 시냅스 양상에 관한 전자현미경적 연구
- Kim, Moo-Jung (Department of Dentistry, Graduate School, Kyungpook National University) ;
- Bae, Yong-Chul (Department of Dentistry, Graduate School, Kyungpook National University) ;
- Kim, Chin-Soo (Department of Dentistry, Graduate School, Kyungpook National University)
- Published : 1993.12.31
Abstract
It was revealed that the morphology and projection pattern of terminal arbors from single primary afferent are different among distinct fiber types, functional types and the different subdivision of trigeminal sensory nucleus complex(TSNC). But it was not identified the ultrastructural morphology and synaptic connections of terminal arbors from each primary afferent within TSNC. So we employed the intra-axonal horseradish peroxidase(HRP) injection technique to define the terminal arbors of primary afferent fiber from slowly adapting mechanoreceptors in the periodontal ligament of the cat, and examined 66 labeled terminal arbors within the rostrodorsomedial part(Vo.r) of the trigeminal nucleus oralis, electromicroscopically with 90nm serial sections. All the boutons labelled with HRP contained clear, spherical and uniform sized synaptic vesicles(diameter :
단일축삭내 HRP 주입기법에 의해 서순응형 치근막 기계적자극수용기에서 오는 일차구심성 신경섬유증 무수축삭에 의해 연결되어 있는 종말지의 시냅양상 및 미세구조에 대한 연구결과는 다음과 같았다. 1. 표식된 stem collateral은 첫 bouton을 형성할 때까지는 수질을 함유하고 있었으며, 그 직경은 약
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