DEVELOPMENT OF THE ANAL-CANAL MUSCLES

被引：31

作者：

LEVI, AC ^{[1
]}

BORGHI, F ^{[1
]}

GARAVOGLIA, M ^{[1
]}

机构：

[1] UNIV TURIN,OSP S VITO,DEPT SURG,I-20100 TURIN,ITALY

来源：

DISEASES OF THE COLON & RECTUM | 1991年 / 34卷 / 03期

关键词：

ANAL CANAL; LEVATOR ANI; EXTERNAL SPHINCTER; DEVELOPMENT;

D O I：

10.1007/BF02090167

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

The anal canal muscles development is studied in 18 human embryos. The external anal sphincter results to origin common with the urogenital sphincter from the cloacal sphincter. The muscle, after its appearance, is subdivided into two portions from a thin mesenchimal layer. Moreover, our embryologic study clearly confirms that the puborectalis muscle is a portion of the levator ani, its primordium being common with the ileo and the pubococygeus muscles. The anal smooth musculature appears later than the striated one.

引用

页码：262 / 266

页数：5

共 21 条

[1] A STUDY IN ORGANOGENESIS - THE ARTERIAL SUPPLY OF THE ANORECTAL REGION IN THE HUMAN-EMBRYO AND FETUS - ANATOMIC AND EMBRYOLOGIC BASES OF ANORECTAL-MALFORMATIONS [J].