家兔股二头肌的肌内神经和运动终板分布  

Distributions of intramuscular nerves and motor endplates of the biceps femoris in rabbit

作　　者：杨胜波[1] 薛黔[1] 

机构地区：[1]遵义医学院人体解剖学教研室,贵州遵义563003

出　　处：《遵义医学院学报》2006年第3期219-221,共3页Journal of Zunyi Medical University

基　　金：教育部科学技术研究重点项目资助课题(C-239)

摘　　要：目的探究家兔股二头肌肌内神经和运动终板分布特征。方法改良Sihler’s染色法、乙酰胆碱酯酶染色法。结果家兔股二头肌为扁肌。肌纤维长短、排列不一。长、短两头各有一条神经主干,各神经干在肌内发出数目不等的初级支,初级支再分出数目不等的次级支。短头内的神经分支主为树枝样分布,长头内的神经支主为扇形分布。乙酰胆碱酯酶染色:可见肌表面或内部,是一些长短不一,呈“虎皮样”外观的运动终板短带。结论家兔股二头肌的肌内神经和运动终板的分布与肌纤维排列有关,其分布特征与扁肌相符。Objective To investigate the feature of distributions of intramuscular nerves and motor endplates of the biceps femorls in rabbit. Methods Modified sliders staining;Acetylcholinesterase staining. Results Biceps femoris was fiat muscle in rabbit. Length and short of muscle fiber and arranging were differing. Long and short head had a main nerve trunk separately,every nerve main trunk sent out primary branches of differing number, and then,divided into numerous sencond branches.Distributions of intramuscular nerves of short head mainly were arboroid.and in long head mainly were sectorshaped. Acetylcholinesterase staining：on facies and inside of the biceps femoris in rabbit, length of those motor endplate bands were differ, this diffuse arrangement of endplates look as if ＂speckle of tiger skin＂. Conclnsions Distributions of intramuscular nerves and motor endplates of muscle biceps femoris of rabbit were related to spatial arrangement of the muscle fibres,their distributions feature accorded with that of fiat muscles.

关 键 词：股二头肌 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]