摘要
本文在45套(男25,女20)内蒙古通辽地区出土的干燥成人骨骼标本上,测量了颈椎间关节的立体方位和运动节段的稳定三角。自颈_(2-3)至颈_(6-7)节段,椎间关节的冠状角和矢状角依次减小,水平角则依次增大。运动节段的稳定三角呈顶角为钝角的等腰三角形,重心偏后,因而使颈段脊柱的前后稳定性小于横向稳定性。
The stereoscopic orientation of the cervical zygapophyseal joint and the stability triangle of the motion segment were measured on 45 sets(male 25, female 20)of adult dry skeletons unearthed from Tongliao district in Inner Mongolia Autonomous Region. The coronal and sagittal angles of the cervical zygapophyseal joint decrease successively while the horizontal angle of that increases progressively from C2_3to C6_7segment. The stability triangle of the motion segment is an isosceles triangle, in which the vertex angle is obtuse, and its gravity center lies posteriorly. therefore, the anterio-posterior stability of the cervical spine is less than the transverse ones.
出处
《人类学学报》
CSCD
北大核心
1993年第1期33-38,共6页
Acta Anthropologica Sinica
