次髎穴(BL-32)是足太阳膀胱经上的一个主要穴位

其不仅能治疗盆腔脏器的疾病

而且可以电针次髎穴(改良)进行全子宫切除术和剖腹产等

临床用改良次髎穴复合麻醉手术中积累了大量资料

发现其具有镇痛作用。肌肉松驰好、生理干扰小。术后恢复快等优点。然而有关这方面的机制探讨和实验报道甚少

究竟针刺次髎穴通过什么途径、以什么方式达到镇痛和使肌肉松弛的目的?我们应用生理记录的方法发现电针确能使子宫肌肉松驰

肌张力降低

并分析了产生针效的可能途径。本文的目的在于用辣根过氧化物酶(HRP)方法对次The afferent segmental distribution of the acupoint Ziliao (BL-32) and uterus in the rat have been studied by using of HRP (horseradish peroxidase). The HRP was applied to the acupoint BL-32 or injected to the intramuscular layer of the uterus.The results are as follows:1).There are 9 segments overlapped from L.2 to S.4 between the acupoint BL-32 and uterus.Both have a lot of labelled cells in S.2 and S.3 segments.2).We also discovered that the primary afferent fibers of the rat may mainly enter the lumbar spinal cord along the hypogastric nerve

the second is along the pelvic splanchnic nerve.3).There are three kind of cells:large(35-50μ)

median(25-34μ)and small types (-24μ) discoverecd.But the most are median and small types (about 90% in whole). The mechanism of the referred pain and acupuncture anaesthesia

and the role of the different kind of primary afferennt fibers of the spinal nerve in the acupuncture treatment were also discussed.