Kucera J
Histochemistry. 1980;67(3):291-309. doi: 10.1007/BF00692762.
Muscle spindles were traced in serial transverse sections of cat tenuissimus muscles. "Myofibrillar" adenosine triphosphatase staining reaction was used to identify nuclear bag1, nuclear bag2 and nuclear chain intrafusal muscle fibers. Typical chain fibers and long chain fibers were distinguished, the latter extending for more than 1,000 micron beyong the termination of the spindle capsule. Simple "rim" and more elaborate "plate" deposits were demonstrated histochemically along the poles of the typical chain fibers in staining for cholinesterases. They were considered to correspond, respectively, to the trail and plate motor nerve terminals. Most long chain fibers and the majority of nuclear bag fibers had their motor innervation limitd to "plate"-type endings. In addition, faint diffuse cholinesterase staining occurred along the spindle capsule and the surface of some intrafusal fibers. These histochemical observations are discussed with regard to the current concepts concerning the morphological and functional organization of the motor innervation of the cat muscle spindle.
在猫的薄肌系列横切面上追踪肌梭。采用“肌原纤维”三磷酸腺苷酶染色反应来识别核袋1、核袋2和核链梭内肌纤维。区分出典型链纤维和长链纤维，后者在纺锤体囊终止处之外延伸超过1000微米。在胆碱酯酶染色中，沿典型链纤维的两极通过组织化学方法证实了简单的“边缘”和更复杂的“板状”沉积物。它们分别被认为对应于尾迹和板状运动神经末梢。大多数长链纤维和大多数核袋纤维的运动神经支配限于“板状”末梢。此外，沿纺锤体囊和一些梭内肌纤维表面出现微弱的弥漫性胆碱酯酶染色。结合当前关于猫肌梭运动神经支配的形态和功能组织的概念对这些组织化学观察结果进行了讨论。
