腰部脊神经后支的分布与穴位关系探讨

Relationship between the distribution of spinal nerve posterior ramus and locations of acupoint in low back

目的:通过腰部脊神经后支的解剖观察,探讨腰部脊神经后支分布与穴位的关系。方法:对5具尸体,进行腰部局部解剖,观察腰部夹脊穴和背俞穴分布区域的竖脊肌和脊神经后支的配布情况。结果:脊柱两侧分布着T_(12)、L_1、L_2、L_3和L_4脊神经后支,其中脊神经后支的内侧支走行在胸棘肌和胸最长肌之间,而脊神经后支的外侧支走行在胸最长肌和腰髂肋肌之间。结论:腰部的夹脊穴和背俞穴,与脊神经后支密切相关,尤其是与T_(12)、L_1、L_2、L_3、L_4脊神经后支密切相关。

Objective To explore the relationship between the distributions of posterior ramus of spinal nerve（PRSN） and locations of acupoint in low back through anatomical observation. Methods The regional anatomy was performed at five corpses to observe the distribution of erector spinae muscle and PRSN in areas of Jiaji points and back-shu points in low back. Results The T12, L1, L2, L3 and L4 PRSN distributed on both sides of the spine; the medial branches of PRSN travelled between spinalis thoracis muscle and longissimus thoracis muscle, while the lateral branches of PRSN travelled between longissimus thoracis muscle and iliocostalis lumborum muscle. Conclusion Jiaji points and back-shu points in low back are closely associated with PRSN, particularly T12, L1, L2, L3 and L4.