Development of the anal canal muscles
| Autor: | Felice Borghi, Alessandro Cesare Levi, Garavoglia M |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
animal structures
business.industry External anal sphincter Urethral sphincter Muscles Anal wink Gastroenterology Anal Canal Gestational Age General Medicine Anatomy Anal canal Embryonic and Fetal Development medicine.anatomical_structure Levator ani Cloacal Sphincter otorhinolaryngologic diseases Medicine Sphincter Humans business Puborectalis muscle |
| Zdroj: | Diseases of the colon and rectum. 34(3) |
| ISSN: | 0012-3706 |
| Popis: | 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 pubococcygeus muscles. The anal smooth musculature appears later than the striated one. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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