sphincter

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sphinc·ter

 (sfĭngk′tər)
n.
A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning.

[Late Latin sphinctēr, from Greek sphinktēr, from sphingein, to bind tight.]

sphinc′ter·al adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sphincter

(ˈsfɪŋktə)
n
(Anatomy) anatomy a ring of muscle surrounding the opening of a hollow organ or body and contracting to close it
[C16: from Late Latin, from Greek sphinkter, from sphingein to grip tightly]
ˈsphincteral adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sphinc•ter

(ˈsfɪŋk tər)

n.
a circular band of voluntary or involuntary muscle that encircles and closes an orifice of the body or one of its hollow organs.
[1570–80; < Late Latin < Greek sphinktḗr=sphing-, base of sphíngein to hold tight + -tēr agent suffix]
sphinc′ter•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

sphinc·ter

(sfĭngk′tər)
A ring-shaped muscle that encircles an opening or passage in the body. Contraction and relaxation of a sphincter closes and opens the passage.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sphincter

A ring-shaped muscle that contracts to close an orifice.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sphincter - a ring of muscle that contracts to close an opening
muscle, musculus - one of the contractile organs of the body
physiological sphincter - a sphincter that is not recognizable at autopsy because its resting arrangement cannot be distinguished from adjacent tissue
anal sphincter, musculus sphincter ani, sphincter ani - the sphincter muscle of the anus
musculus sphincter urethrae, urethral sphincter - a striated sphincter muscle that constricts the urethra
bladder sphincter, musculus sphincter vesicae - the sphincter muscle of the urinary bladder; made up of a thickened muscular layer of bladder around the urethral opening
musculus sphincter ductus choledochi - the smooth muscle sphincter of the common bile duct
musculus sphincter ductus pancreatici - the smooth muscle sphincter of the main pancreatic duct
musculus sphincter pupillae, pupillary sphincter - a ring of smooth muscle surrounding the iris
musculus sphincter pylori, pyloric sphincter, pyloric valve - the sphincter muscle of the pylorus that separates the stomach from the duodenum
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
svěrač
sulkijalihas

sphincter

[ˈsfɪŋktəʳ] Nesfínter m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

sphincter

[ˈsfɪŋktər] nsphincter m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

sphincter

n (Anat) → Schließmuskel m, → Sphinkter m (spec)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

sphinc·ter

n. esfínter, músculo circular que abre y cierra un orificio.
English-Spanish Medical Dictionary © Farlex 2012

sphincter

n esfínter m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Although the small sample size and absence of long-term results were limitations of this study, the satisfactory preliminary results encourage us to consider that combined repair of anal sphincters, perineal body, superficial transverse perinei muscles, and bulbospongiosus muscles may improve surgical outcomes in patients with OASIS.
Anal endosonography is the gold standard in imaging the sphincters, and has superseded conventional electromyography mapping in the diagnosis of anal sphincter defects.
(5) Likewise combined IAS and EAS defects were associated with a decrease in both resting and squeeze pressures, emphasising the contribution of both sphincters to overall anal canal pressures.
A transverse incision was made at 3 or 9'o clock position and blunt dissection was carried out in the plane between internal and external sphincters. The internal sphincter was dissected away from anal mucosa.
Cutting setons slowly divide the sphincters leading to scarring with limited disruption of the muscular ring having a healing rate of 32.6%2 and recurrence rates of 22-39%3.
After the anal sphincters have been repaired, the vaginal wall and remainder of the perineal body are reconstructed using the same techniques involved in a 2nd-degree laceration repair.
Long-term durability and functional outcomes among patients with artificial urinary sphincters: A 10-year retrospective review from the University of Michigan.
Women develop severe perineal lacerations (SPLs) involving the anal sphincters during 0.5% [1-3] to 6% [4] of vaginal deliveries.
Prior experience in perineal tears surgery helps in the identification of sphincter and the use of video enables postgraduate trainees to improve knowledge of the repair of third and fourth-degree laceration.5 We also incorporated a 15-minutes DVD on goat model for better understanding of anatomy and repair of sphincter and the results of a randomised controlled study showed a significant improvement in the anatomy, repair methods and complication subscales among the DVD and non-DVD users.10 The first international hands-on workshop was introduced by Thakar and Sultan11 on the management of OASI to educate obstetricians in perineal and anal sphincter anatomy and techniques of repair of OASI using cadaveric pig's anal sphincters.
If high bladder pressures are present and the sphincters are inactivated, free drainage with condome catheters is a safe option.
Washington, Aug 10 (ANI): Scientists have built the first functional anal sphincters - ring-like muscles that maintain constriction of a body passage - in the laboratory, which may provide a potential treatment for both fecal and urinary incontinence.