anal sphincter


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Related to anal sphincter: hemorrhoid, sphincter ani, Sphincter ani externus muscle
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.anal sphincter - the sphincter muscle of the anus
anus - the excretory opening at the end of the alimentary canal
anatomical sphincter, sphincter, sphincter muscle - a ring of muscle that contracts to close an opening
musculus sphincter ani externus - an external ring of striated muscle surrounding the anus
musculus sphincter ani internus - an internal ring of smooth muscle formed by circular fibers of the rectum
References in periodicals archive ?
At the end of the challenge, anal sphincter resting pressure increased significantly compared with the baseline values in the patients who experienced a recurrence.
3-5] Up to 25% of primigravidas experience altered continence postnatally, with one-third having evidence of anal sphincter injury.
The patient's proliferated muscle cells are re-injected into the patient's external anal sphincter muscle, using Innovacell's proprietary injection device, thereby regenerating the muscleos full functionality.
Constipation is usually due to slow or delayed transit of gut contents, normal transit but delayed defecation, or pelvic floor or anal sphincter dysfunction.
Poor diet, frequent diarrhea or constipation, weakening of anal sphincter muscles and damage to the rectum or surrounding nerves," she said.
Chronic tension in the internal anal sphincter -- the muscular ring that surrounds the anal canal -- is often an underlying factor because it reduces blood flow to the region.
She has a class 4 cystocele, a rectocele and a weak anal sphincter.
1,7) Internal Sphincterotomy reduces post hemorrhoidectomy pain by abolishing the hypertonicity (spasm/pressure) of the internal anal sphincter and subsequently reduces the related post hemorrhoidectomy complications as well.
Recently Richard Craver, writing in the Winston--Salem Journal, reported that researchers at The Institute of Regenerative Medicine, Wake Forest University, produced the first functional anal sphincter in a laboratory setting.
Kristin further alleged that Katy Maker, Catherine Parisi and Catherine Gallagher, all of whom are certified nurse-midwives, and Curly Detterman, who was a registered nurse and, midwife in training, at the time treatment was rendered, were agents or employees or the defendant medical practices who negligently failed to diagnose and to treat a fourth degree tear of her vaginal tissue, perinea] skin and anal sphincter at the time of delivery and during postpartum check-ups.
BALTIMORE - Anal sphincter laceration is significantly associated with anal incontinence 5-10 years after a woman's first delivery and has significant impact on quality of life, compared with women who had a vaginal delivery without laceration and women who had cesarean section.
Because the protruding tissue interferes with proper closure of the anal sphincter, the patient with permanent prolapse may notice fecal staining of underwear.