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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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Highly Cited
1993
Highly Cited
1993
ObjectiveThis study was performed to (1) correlate anal sphincter defects, identified by endoanal ultrasound with operative… Expand
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Highly Cited
1991
Highly Cited
1991
Forty‐four consecutive patients with incontinence of solid stool of traumatic or idiopathic aetiology were examined by anal… Expand
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Highly Cited
1986
Highly Cited
1986
This study examined the effectiveness of teaching pelvic floor exercises with use of bladder-sphincter biofeedback compared to… Expand
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Highly Cited
1985
Highly Cited
1985
Among patients complaining of constipation, a group can be defined in which there is slow whole gut transit shown by retention of… Expand
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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… Expand
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Highly Cited
1982
Highly Cited
1982
Brief high-voltage electrical shocks from a special low-output-resistance stimulator, delivered through electrodes on the skin… Expand
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Highly Cited
1982
Highly Cited
1982
We have studied 20 patients with the descending perineum syndrome, half of whom were incontinent of faeces. Objective criteria… Expand
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Highly Cited
1980
Highly Cited
1980
  • M. Neill, M. Swash
  • Journal of neurology, neurosurgery, and…
  • 1980
  • Corpus ID: 9876179
The motor unit fibre density in the external anal sphincter muscle has been measured in 13 normal subjects aged 18 to 78 years… Expand
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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… Expand
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Highly Cited
1965
Highly Cited
1965
It is well known both by clinical examination and by objective measurement that a high pressure zone is to be found in the anal… Expand
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