Cutaneous reflexes in small muscles of the hand
Cutaneous reflexes in small muscles of the hand
复制标题
手部小肌肉的皮肤反射
DOI：
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发表时间：
1973
影响因子：
11
通讯作者：
T. Blogg
中科院分区：
文献类型：
--
作者：
M. Caccia;A. McComas;A. Upton;T. Blogg
研究了支配手部小肌肉的运动神经元对皮肤电刺激和机械刺激的反应。在对皮肤的给定区域进行单次刺激后，可以在同一肌肉中观察到兴奋和抑制效应。最早的兴奋和抑制反应可能是由III组和较小的II组传入神经纤维介导的。后一种抑制是由较大的II组纤维的活性引起的，II组纤维与皮肤机械感受器相连，特别是手指和拇指的尖端。这种迟发性抑制反射可能通过梭运动系统起作用。这些反射可能的作用进行了讨论，在人和猫以前的调查。
A study has been made of the responses of motoneurones innervating small muscles of the hand to electrical and mechanical stimulation of the skin. Both excitatory and inhibitory effects could be observed in the same muscle after a single stimulus to a given area of skin. The earliest excitatory and inhibitory responses are probably mediated by group III and the smaller group II afferent nerve fibres. A later inhibition results from activity in the larger group II fibres which are connected to cutaneous mechanoreceptors, especially those in the tips of the fingers and thumb. This late inhibitory reflex may operate through the fusimotor system. The possible roles of these reflexes are discussed in relation to previous investigations in man and the cat.