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Sphincter
(redirected from sphincteric)

    Also found in: Dictionary/thesaurus, Medical 0.01 sec.
sphincter
Anatomy a ring of muscle surrounding the opening of a hollow organ or body and contracting to close it
sphincter [′sfiŋk·tər]
(anatomy)
A muscle that surrounds and functions to close an orifice.
Sphincter 

a ringlike muscle that constricts to close a natural orifice such as the oral or anal opening, or to narrow the passage from one part of a hollow tubular organ to another, for example, from the stomach and bile duct to the duodenum and from the bladder to the urethra. The sphincter is always in a tonic state. The orbicular muscle of the iris is a sphincter. Some sphincters consist of striated muscle and others of smooth muscle innervated by the autonomic nervous system.
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Peristalsis and sphincteric zones tend to keep foods and secretions moving in an anterograde direction; however, a variety of chemical and enzymatic agents can still move in a retrograde direction, thus producing "reflux.
Duodenogastroesophageal reflux and its effect on extraesophageal ... by Blumin, Joel H.; Merati, Albert L.; Toohill, Robert J. / Ear, Nose and Throat Journal
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.
Bacteroides fragilis vertebral osteomyelitis: case report and a ... by Gerstein, Wendy H. / Southern Medical Journal
Levator ani and coccygeus, considered to be the primary supporting and sphincteric muscles of the pelvic floor, are the focus of most anatomical descriptions included in clinical texts concerned with assessment and treatment techniques.
Anatomy in practice: the ischiorectal fossae by Mercer, Susan; Hay-Smith, E. Jean / New Zealand Journal of Physiotherapy
 
 
 
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