最近我们观察了针刺加压反应的不同区域血管阻力的变化。实验表明

针刺人中、足三里引起加压反应时

后肢、小肠、肾、脾等阻力血管可发生大致相同程度的反射性收缩

其作用与隐神经加压反应的效应相似。但阻断颈总动脉血流及刺激颈动脉体化学感受器并引起加压反应时

分别对肾、脾Experiments were carried out to observe the reflex reactions of the nictitating membrane

pupil

bladder and small intestine during the pressor reaction induced by acupuncture and to compare them withthe effects during the pressor reactions induced by stimulation of the carotid body

saphenous nerveand occlusion of common carotid artery

in order to show whether there was relative specificity inphysiological effects induced by stimulation of different points

what kind of afferent stimulation itresembled to;and whether the reflex reactions of the different autonomic effectors to differentstimuli were the same or not.Experiments were performed on 36 concious cats.Stimulation of the saphenous nerve coulddiffusely induce reflex reactions in different effectors.However

the effects of stimulation ofthe carotid body and of occlusion of the common carotid artery on different autonomic effectorswere slight.The differences between the two kinds of stimuli were significant.The effects ofPhiltrum(人中)and Zusanli(足三里)needling were basically similar to those of stimulation ofsaphenous nerve.The above-mentioned results suggest that acupuncture belongs to a non-specific afferent stimulus.Except on nictitating membrane

the effects of two points on these effectors are basically the same.It seems that there is no specificity of points.The results also suggest that the functional behaviorsof the sympathetic nerve and parasympathetic nerve do not necessarily show reciprocal inhibition.Under a given condition

the one can be excited and the other inhibited.Sometimes

both kinds of nerves can be excited at the same time.Moreover

the reflex reactions of the different effectorsto different afferent stimuli are different.That is prohably because of the fact that the differentorgans are controlled by the different the neuron pools of the sympathetic center and that the synapticconnections of a definite afferent fiber group may be more close to one neuron pool than to theother

so that stimulation of this afferent fiber group would more readily induce excitation of thispool and the organ controlled by it

while the responses of other pools and these organs controlledby them would be slight.