胸腰脊神经根鞘形态观测及其临床意义  

Morphological observation of thoroclumbar spinal nerve root sheath and its clinical significance

作　　者：瞿佐发[1,2] 李兴富[1,2] 吴先国[1,2] 王雅琴[1,2] 李红军[1,2] 

机构地区：[1]三峡学院医学院解剖学教研室 [2]三峡学院医学院组胚教研室

出　　处：《中国临床解剖学杂志》1997年第2期92-94,共3页Chinese Journal of Clinical Anatomy

摘　　要：目的：为了探讨腰腿疼痛等疾病与脊神经根鞘的关系。方法：用巨视解剖和游标卡尺测量法对１５具尸体的胸腰脊神经根鞘进行了解剖学观察与测量。结果：①左、右胸腰脊神经根鞘长度和横径基本对称；②Ｔ１根鞘长度和横径大于其它胸神经根鞘，接近Ｌ２水平，Ｌ３～Ｌ５根鞘长度和横径大于其它胸腰神经根鞘，尤其Ｌ５更为突出；③胸腰脊神经根鞘开口式，由上向下，由２～３孔逐渐减至１孔。结论：①Ｔ１、Ｌ２～Ｌ５脊神经根鞘既长又粗，与周围接触范围大，受损危险增大；②根鞘开口式孔数由上向下减少，发生在鞘内的炎症和肿瘤引起前、后根同时受累的机会增多。Objective:To study the relationship between the spinal nerve root sheath and lumbocrural pain.Methods:Thoroclumbar spinal nerve root sheaths were observed and measured on 15 adult cadaver specimens.Results:The length and diameter of the left and right nerve root sheaths were symmetrical.T 1 nerve root sheath was the biggest one in length and diameter among all thoracic segments.It was as big as L 2 one.And the length and diameter of L 3～L 5 root sheaths were larger than other thoroclumbar segment.The sheath had 2～3 aperturae at thoracic segments and decreased to 1 aperture at lumbar segments.Conclusions:The root sheath of T 1,L 2～L 5 are easy to be damaged by surrounding tissues.The ventral and dorsal nerve roots have more chance to be involved when tumor or inflammation happened in root sheath at lumbar level.

关 键 词：脊神经根 腰神经 胸神经 形态观测 解剖学 

分 类 号：R322.85[医药卫生—人体解剖和组织胚胎学]