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人类鱼际肌的肌纤维型分布

Distribution of myofiber types in thenar muscles
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摘要 取 5例 (男 4 ,女 1) ,2 1～ 37岁 ,死亡后 12h内的人体两侧手鱼际肌组织 50块 ,用肌球蛋白ATP酶法 ,系统研究了各肌的肌纤维型分布。结果表明 :人类鱼际肌中I型 (慢缩 )纤维的平均百分率在 59%～ 67%之间 ,平均为 62 %显著高于上肢其它各肌群I型纤维的平均百分率 (P<0 0 5)。鱼际肌的深、浅层间 ,多数肌I型纤维百分率接近。左、右侧别比较 ,除拇收肌横头右侧者显著高于左侧外 ,其余肌均未见显著的I型纤维侧别差异 ,结合肌电图和拇指功能 。 Samples of the human thenar muscles were taken from five healthy young cadavers(4 male, 1 female)died of accidents. The distribution and composition of type Ⅰand type Ⅱfibers in the thenar muscles were studied by histochemical method for myofibrillar ATPase.The results showed that the mean percentages of type Ⅰ fibers ranged from 59% to 67% in these thenar muscles and the total mean percentage was 62% The thenar muscles have significantly higher proportions of type Ⅰ fibers than those of the muscles in ...
作者 马晓凯 刘绍壮 应福其
机构地区 大连医科大学解剖学教研室
出处 《大连医科大学学报》 CAS 2001年第1期14-15,22,共3页 Journal of Dalian Medical University
关键词 鱼际肌 肌纤维型 ATP酶 fiber type distribution thenar muscles myofibriollar ATPase
分类号 R322.74 [医药卫生—人体解剖和组织胚胎学]
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参考文献8

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二级参考文献10

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大连医科大学学报
2001年 第1期

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