Development of the anal canal muscles

A. C. Levi; F. Borghi; M. Garavoglia

doi:10.1007/BF02090167

Development of the anal canal muscles

A. C. Levi
, F. Borghi
, M. Garavoglia

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	262-266
Number of pages	5
Journal	Diseases of the Colon and Rectum
Volume	34
Issue number	3
DOIs	https://doi.org/10.1007/BF02090167
Publication status	Published - Mar 1991
Externally published	Yes

Keywords

Anal canal
Development
External sphincter
Levator ani

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10.1007/BF02090167

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abstract = "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.",

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AU - Levi, A. C.

AU - Borghi, F.

AU - Garavoglia, M.

PY - 1991/3

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N2 - 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.

AB - 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.

KW - Anal canal

KW - Development

KW - External sphincter

KW - Levator ani

UR - https://www.scopus.com/pages/publications/0025811428

U2 - 10.1007/BF02090167

DO - 10.1007/BF02090167

M3 - Article

SN - 0012-3706

VL - 34

SP - 262

EP - 266

JO - Diseases of the Colon and Rectum

JF - Diseases of the Colon and Rectum

IS - 3

ER -

Development of the anal canal muscles

Abstract

Keywords

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