跟腱切断术后梭外肌纤维与梭内肌纤维的生物测量及组织化学比较
Biometrical and histochemical comparison between extra- and intrafusal muscle fibres following tenotomy.
作者信息
De Reuck J, Vander Eecken H
出版信息
Pathol Eur. 1976;11(4):281-4.
The average diameter of the different enzymatic types of extra- and intrafusal muscle fibres is determined by means of a one millimeter scale ocular micrometer in the gastrocnemius muscle of twenty four female rats during three months, at regular intervals following tenotomy. There is a predominant atrophy of the type II extrafusal as well as intrafusal fibres in the period of immobilization. However, when the muscle becomes functional again, by healing and elongation of the tendon, the intrafusal type II fibres remain atrophic in contrast to the extrafusal ones, which regain their normal size.
在切断跟腱后的三个月内，每隔一定时间，使用带有一毫米刻度的目镜测微计，测定24只雌性大鼠腓肠肌中不同酶类型的梭外肌纤维和梭内肌纤维的平均直径。在固定期，II型梭外肌纤维和梭内肌纤维均出现明显萎缩。然而，当肌肉通过肌腱愈合和延长再次恢复功能时，梭内II型纤维仍保持萎缩状态，而梭外纤维则恢复到正常大小。
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