绵羊眼外肌中肌梭的反应。
The responses of muscle spindles in sheep extraocular muscles.
作者信息
Browne J S
出版信息
J Physiol. 1975 Oct;251(2):483-96. doi: 10.1113/jphysiol.1975.sp011104.
Abstract
- Responses from de-efferented muscle spindles in sheep extraocular muscles have been recorded in the Gasserian ganglion using glass microelectrodes. 2. The afferent fibre conduction velocities ranged from 32 to 106 m/sec and most were intermediate. The distribution was unimodal. 3. The afferent responses to ramp stretches and longitudinal vibration of the muscle could not be divided into two groups, but both the dynamic indices and vibration sensitivities of the afferents increased with their conduction velocities. 4. Injection of suxamethonium did not help to classify afferents with intermediate conduction velocity. 5. It is concluded that the afferents from sheep extraocular muscle spindles form a single population whose properties are correlated with their nerve fibre diameters.
摘要
- 使用玻璃微电极在绵羊三叉神经节记录了去传入神经支配的眼外肌肌梭的反应。2. 传入纤维传导速度在32至106米/秒之间，大多数为中等速度。分布呈单峰型。3. 对肌肉的斜坡拉伸和纵向振动的传入反应不能分为两组，但传入神经的动态指数和振动敏感性均随其传导速度增加。4. 注射琥珀胆碱无助于对传导速度中等的传入神经进行分类。5. 得出的结论是，绵羊眼外肌肌梭的传入神经形成单一群体，其特性与其神经纤维直径相关。
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