小直径有髓传入神经在大鼠皮肤中可引起血管舒张，但不会导致血浆外渗。
Small diameter myelinated afferents produce vasodilatation but not plasma extravasation in rat skin.
作者信息
Jänig W, Lisney S J
机构信息
Department of Physiology, School of Medical Sciences, University Walk, Bristol.
出版信息
J Physiol. 1989 Aug;415:477-86. doi: 10.1113/jphysiol.1989.sp017732.
Abstract
- Antidromic stimulation of the rat saphenous nerve at intensities sufficient to excite small myelinated (A delta) fibres but not unmyelinated (C) fibres produced evidence of a transient increase in skin blood flow in the saphenous nerve territory. The magnitude and time course of the vasodilatation depended on the number and frequency of stimuli delivered to the nerve. 2. There was no evidence of an accompanying plasma extravasation. 3. The results suggest that A delta afferent fibres are involved in axon reflex/axon response reactions as well as unmyelinated (C) afferent fibres.
摘要
- 以足以兴奋小的有髓鞘（Aδ）纤维而不兴奋无髓鞘（C）纤维的强度对大鼠隐神经进行逆向刺激，结果显示隐神经支配区域的皮肤血流出现短暂增加。血管舒张的幅度和时程取决于施加于神经的刺激数量和频率。2. 没有伴随血浆外渗的证据。3. 结果表明，Aδ传入纤维与无髓鞘（C）传入纤维一样，都参与轴突反射/轴突反应。
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