H. Hiraba, Takako Sato, Koko Manabe, M. Hori, Syuuko Imura, Hiroshi Tanaka
{"title":"Changes in Activities of the Jaw and Tongue Muscles Following Severance of the Unilateral Hypoglossal Nerve (Medial Branch) in Awake Cats","authors":"H. Hiraba, Takako Sato, Koko Manabe, M. Hori, Syuuko Imura, Hiroshi Tanaka","doi":"10.2330/JORALBIOSCI1965.44.96","DOIUrl":null,"url":null,"abstract":"片側舌下神経内側枝を切断したネコにおいて, 一定量の食物摂取・咀嚼時の食物摂取率, 咀嚼期間, 両側オトガイ舌筋および咀嚼筋 (咬筋と顎二腹筋前腹) の活動量および顎運動を約1カ月間記録し, 咀嚼機能の安定までの期間を検索した.食物摂取率は神経切断後, 舌偏位の状態を保ったまま約2週で切断前の約80%で安定した. 咀嚼期間および最大開口量は25日程度でそれぞれ約1.5倍, 約80%となり, 安定傾向を示した. 咀嚼時の左右側筋活動は神経切断後約25日で, オトガイ舌筋では切断側約30%, 非切断側約150%, 咬筋ではま両側ともほぼ切断前の値, 顎二腹筋前腹では切断側はほぼ切断前の値, そして非切断側は約50%で安定傾向を示した.以上の結果から, 片側舌下神経内側枝切断後円滑な咀嚼運動が回復し, 安定するまでには約1カ月を要することが判明した.","PeriodicalId":14631,"journal":{"name":"Japanese Journal of Oral Biology","volume":"42 1","pages":"96-105"},"PeriodicalIF":0.0000,"publicationDate":"2002-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Journal of Oral Biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2330/JORALBIOSCI1965.44.96","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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