摘要
在60例排粪造影基础上,从盆底X线解剖学划线入手,对Shafik的盆底肌功能理论进行检验,结果表明:肛提肌并无提肛功能,反而有限制提肛作用,该肌在会阴下移时以等长收缩将三肌袢拉离肛管,使肛管处于自由状态。耻骨直肠肌不仅具有括约肛管作用,还是真正的提肛肌。肛门外括约肌并无蠕动性排便作用,其收缩程度将影响肛管的开放及开放程度。肛门内括约肌的非随意关闭肛管作用与外括约肌收缩程度无关。
Shafik's theory was examined by delimiting the pelvic floor with photogrammetry of defecation in 60 subjects. The result showed that:①The levator ani muscle will draw away the external sphincter and the puborectalis muscle when perineum descending by equal long contraction, this makes the internal sphincter on the free state;② The puborectal muscle is the real muscle of lifting the anal canal and the perineum.
出处
《山西医科大学学报》
CAS
1997年第2期84-86,共3页
Journal of Shanxi Medical University
关键词
耻骨
直肠肌
肛提肌
肛周
结缔组织系统
X线
puborectalis muscle
levator ani muscle
external sphincter triple loop system
around ani connective tissue system