我们过去曾在休克动物上证明针刺人中具有抗休克效应

并认为这种效应与改善内脏器官血流量及心功能有关。国内还曾先后报导

刺激人中、内关等穴可引起明显的加压反应。本工作旨在既往工作的基础上

应用一定强度、频率与波宽的电流

分别刺激人中、足三里、曲池等不同穴位

观察血压反应

作出定量比较

并观察针刺引起加压反应时不同血管床(后肢、小Experiments were performed on 40 cats under ether anesthesia for operation.As soon as the operation had finished

flaxedil(5mg/kg)was given intravenously to paralyse skeletal muscles and simultaneously artificial respiration was performed for subsequent observation.To prevent coagulation

heparin(5-10 mg/kg)was given intravenously.In addition to monitoring blood pressure of thecommon carotid artery

the hindlimb

intestinal

renal and splenic blood flow were recorded by aphotoelectric flowmeter before and after stimulation of Philtrum(人中)

Zusanli(足三里)

Quchi(曲池)

saphenous nerve and a pointless area on the right lower quadrant of the abdomen.The peri-pheral vascular resistance and its change rate were also calculated.For comparison

carotid body che-mo-receptors were stimulated by lobeline and the blood flow of the common carotid artery was inter-rupted so as to evoke a pressor response in part of the animals.The experimental results showed:1.If the intensity and frequency of electrical current were gh enough

stimulation of the threepoints and the saphenous nerve could all induce a pressor reaction respectively.Stimulation of thepointless area

however

would not induced significant blood pressure reaction.The difference amongthe five groups was significant.The magnitude of pressor reaction among the points was basically inthe same degree.Therefore

there is no specificity of point so far as pressor reaction is concerned.The pressor rection induced by acupuncture may therefore be the result of the stimulation of a soma-tic nerve.2.The blood flow in hindlimb

intestine

kidney and spleen all decreased and the vascular resis-tance in all increased

when pressor reaction was induced by stimulation of the points and the saphen-ous nerve respectively.The change rate of the vascular resistance in the four organs was about equalto one another.However

the the reaction of the renal resistance vessel was weaker in pressor reac-tion induced by occlusion of the common carotid artery than in the other pressor reactions.Theeaction of the splenic resistance vressel was weaker in the pressor reaction induced by stimulation ofthe carotid body than in the other pressor reactions.The present work suggests that the functionalbehaviours of different vascular beds are not necessarily in the same degree

and the outflow to diffe-rent peripheral vessels from the vasomotor center seems to be uniform.