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.

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

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.

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.

sphincter

A ring-shaped muscle that contracts to close an orifice.
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
Translations
svěrač
sulkijalihas

sphincter

[ˈsfɪŋktəʳ] Nesfínter m

sphincter

[ˈsfɪŋktər] nsphincter m

sphincter

n (Anat) → Schließmuskel m, → Sphinkter m (spec)

sphinc·ter

n. esfínter, músculo circular que abre y cierra un orificio.

sphincter

n esfínter m
References in periodicals archive ?
11) Here, the sphincteric mechanism comprises the striated sphincter externally and the urethral wall smooth muscle and elastic tissue and the urethral mucosa internally.
The recommendation for complete excision, however, has to be balanced with consideration of preserving vocal fold phonatory and sphincteric function.
The cardia surrounds the esophageal orifice; the fundus lies above the level of a horizontal line drawn through the esophageal (cardiac) orifice; the body lies below this line; and the pyloric part is the funnel-shaped region that leads into the pylorus, the distal, narrow sphincteric region between the stomach and duodenum.
Most cases of incontinence are a result of intraoperative damage to the native urinary sphincteric mechanisms (11), particularly the intrinsic sphincter component.
Medical Center), Karram, and Reynolds explain the surgical management of women with urinary incontinence and specific procedures and interventions for urethral sphincteric incontinence and incontinence resulting from detrusor compliance abnormalities.
Urinary incontinence after radical prostatectomy has many causes; the main factor seems to be insufficiency of the sphincteric mechanism and/or bladder abnormalities caused by the anatomical and functional changes during surgery such as direct surgical trauma, neural injury, and decreased elasticity of the bladder neck (3,30).
3) It is important to recognize and preserve the functional urethra, which is usually wide in caliber with good sphincteric function and normal verumontanum.
follow up for 3 years) NS Complete recovery (follow up for 9 months) B fragilis Complete recovery B fragilis Complete recovery B fragilis and GPC Residual neurological dysfunction (Persistent loss of sphincteric control, and monoplegia in the left lower limb) NS Improved on antibiotic but died 4 months later from his comorbid conditions NS - NS Complete recovery B fragilis No further progression of vertebral compression B fragilis and E.
The device's mechanism capitalizes on the remaining sphincteric ability to achieve continence, eliminating or reducing the possibility of urine leaking, even during strenuous activities such as lifting, exercising, sneezing and coughing.