External anal sphincter structure

Known as: Sphincter ani externus, External anal sphincter, M. sphincter ani externus 
A ring of striated muscular fibers surrounding the anus on the outside of the internal anal sphincter.
National Institutes of Health

Papers overview

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Review
2013
Review
2013
BACKGROUND Anal sphincter injury during childbirth - obstetric anal sphincter injuries (OASIS) - are associated with significant… (More)
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Highly Cited
2008
Highly Cited
2008
PURPOSE This randomized study was designed to compare the effect of sacral neuromodulation with optimal medical therapy in… (More)
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Highly Cited
1994
Highly Cited
1994
Defects of the external anal sphincter have traditionally been diagnosed by palpation, anal manometry and electromyography (EMG… (More)
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Review
1993
Review
1993
The evaluation of chronic constipation with or without encopresis must begin with a careful history. The intervals between bowel… (More)
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Review
1989
Review
1989
Anal endosonography using a specially designed hard cone attachment to a radial 7-MHz probe has been performed in 26 normal… (More)
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1989
1989
A method of preserving the external anal sphincter in the treatment of complex trans-sphincteric fistula-in-ano is described… (More)
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Highly Cited
1984
Highly Cited
1984
71 women delivered at St Bartholomew's Hospital, London, were studied by electrophysiological tests of the innervation of the… (More)
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Highly Cited
1983
Highly Cited
1983
Perineal descent is found in patients with idiopathic fecal incontinence and patients with the descending perineum syndrome, who… (More)
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1979
1979
The anatomy of the external anal sphincter was studied in 20 adult human cadavers of both sexes by dissection and histological… (More)
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Highly Cited
1977
Highly Cited
1977
Biopsies of the external anal sphincter, puborectalis, and levator ani muscles have been examined in 24 women and one man with… (More)
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