摘要
近年来,运用荧光双标记技术研究体表与内脏的神经联系发现,在脊神经节内,同一初级感觉神经元,其轴突的分支,一支到达内脏,一支支配体表。Alles 等将微量真蓝注入大鼠心包内,将二联脒黄注入左上肢内侧组织或皮神经内,经适当成活期以后,可在同侧 C<sub>8</sub>、T<sub>1</sub>、T<sub>2</sub>脊神经节内观察到双标记神经元。说明内关与心脏的联系可通过同一神经元的支配而实现。
It is reported that the dichotomizing afferent fibers supply both the peri- cardium and the brachium in rat.This finding provides a possible morpholo- gical explanation for short reflex which transmits messages only through the connection of peripheral nerve dichotomization. The animals utlized in this study were 15 male or female wistar rats (235 ～360g).Rats were anesthetized with 26% urethane (100mg/100g b.wt,i.p.) and then,acute myocardial ischemia (AMI)was produced by pituitrin (1.0～ 1.5u/a rat,i.M.).Following anesthetization and AMI,The Ⅰ lead of ele- ctrocardiogram (ECG)was recorded,the superficial electrical resistance and cutaneous temperature of the acupoint Neiguan and Zusali were measured.In order to break off the long reflex which invokes some effects through central nervous system,the dorsal roots were removed of spinal cord segments cervical 6(C6)～thoracic 1(T1).In this condition,the AMI can decrease in superficial electrical resistance and cutaneous temperature of the acupoint Neiguan (P< 0.01).Acupuncture at Neiguan can also influence the superficial electrical re- sistance of the acupoint Neiguan,improve in the ECG,increase in the heart rate,but acupuncture at Zusali has no these effects.It suggists that acuooint Neiguan and heart can connect ed through a short reflex.
出处
《针刺研究》
CAS
CSCD
1991年第2期115-119,共5页
Acupuncture Research
