他们主要活性成分是辣椒素，是一种传入神经纤维强效刺激物。
Their principal active component is capsaicin, which is a powerful stimulant of afferent nerve fibres.
结果表明，当某一脊髓节段的感觉神经末梢受到一定参数的串脉冲电流的刺激时，可引起相邻节段感觉神经末梢传入放电增多。
Results showed that the afferent impulse discharges of sensory nerve ending increased when an antidromic electric stimulation was given to an adjacent sensory nerve ending.
其作用机理是枸橼酸钠刺激了颈动脉窦区感受器，通过迷走神经传入呼吸中枢引起的。
Its functional mechanism is that Na-citrate has stimulated the carotid sinus through the vagus nerve to the respiratory centre.
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