家兔指浅屈肌肌构筑、肌内神经和运动终板分布  

Study on muscle architecture and distributions of intramuscular nerves and motor endplates of the flexor digitorum superficialis in rabbit

作　　者：卢远兴 杨胜波[2] 

机构地区：[1]遵义医药高等专科学校解剖学教研室,贵州遵义563000 [2]遵义医学院解剖学教研室,贵州遵义563000

出　　处：《遵义医学院学报》2012年第1期27-28,33,共3页Journal of Zunyi Medical University

基　　金：贵州省科学技术基金资助项目(No:C-292)

摘　　要：目的探讨家兔指浅屈肌肌构筑、肌内神经和运动终板分布的关系。方法肌构筑法、改良Sihler’s染色法、乙酰胆碱酯酶染色法。结果家兔指浅屈肌外观长肌,实为双羽肌。FL/CSA与CSA/MW的比值分别是1.80和0.70。肌内神经分为4条初级神经支,主要分支分布于肌的近端和中部;肌内可见神经吻合。运动终板带呈倒"V"型。结论家兔指浅屈肌构筑设计属于速度与力量共存型,其肌纤维排列决定了肌内神经分支和运动终板分布的形式。Objective To explore the relationship among muscular architecture and distributions of intramuscular nerves and motor endplates of the flexor digitorum superficialis in rabbit.Methods Muscular architecture method,modified sihler＇s staining and acetylcholine-esterase staining were performed.Results Flexor digitorum superficialis was an outside long and inside pinnate muscle containing short muscle fibers in rabbit.The ratio of FL/CSA and CSA/MW were 1.80 and 0.70,respectively.Moreover,the intramuscular nerve trunk was divided into 4 primary branches which distributed mainly in the proximum and central region of the muscle.The intramuscular nerve anstomosis could be seen.Linear motor endplate bands formed ＂V-shaped＂ pattern.Conclusion The velocity and strength muscle architecture coexisted in the flexor digitorum superficialis of rabbit.Spatial arrangement of the muscle fibres determined the distribution pattern of intramuscular nerves and motor endplates.

关 键 词：指浅屈肌 肌构筑 肌内神经 运动终板 家兔 

分 类 号：R322[医药卫生—人体解剖和组织胚胎学]