室旁核是丘脑下部的重要核团之一。它不但分泌催乳素和加压素等激素物质

而且还含有多种神经递质;如亮-脑啡肽

β-内啡肽等。另外

形态学研究证明室旁核与间脑、中脑、延髓以及脊髓均有广泛的纤维联系。由此可见室旁核对机体功能起着重要的调控作用

尤其近几年该核团越来越引起了人们的重视。目前

关于室In order to study the ultrastructural change of the paraventricular nucleus of hypothalamus during the electro-acupuncture

13 healthy and adult rats were divided into control group and electro-acupuncture group.The results are as follows: 1.The synapses of the paraventrieular nucleus mainly belong to the axo- dendricular asymmetrical synapses and contain a lot of round clear synaptic vesicles. 2.The round clear synaptic vesicles of the paraventricular nucleus in the electro-acupuncture group are much fewer than those in the control group. The difference is very significant (P<0.01). This suggests that the paraventricular nucleus is inuolved in the electro- acupuncture analgesia.