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Sphincter Meaning and Definition in Dictionary

Definitions from Wordnet 2.0

  • a ring of muscle that contracts to close an opening

Definitions from Wiktionary

  • a ring of muscle that contracts to close an opening

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Wikipedia Meaning and Definition on 'Sphincter'

  • Sphincter: A sphincter is a cylindrical muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal
  • Iris sphincter muscle: The iris sphincter muscle (pupillary sphincter, pupillary constrictor, circular muscle of iris, circular fibers) is a muscle in the part of the eye called
  • Sphincter of oddi: The sphincter of Oddi (or hepatopancreatic sphincter) is a muscular valve that controls the flow of digestive juices (bile and pancreatic juice) through
  • External sphincter muscle of female urethra: external sphincter muscle of female urethra is a muscle which controls urination in women. The terms "urethrovaginal sphincter" ("sphincter urethrovaginalis")
  • Urethral sphincter: urethral sphincter and the internal urethral sphincter. When either of these muscles contracts, the urethra is sealed shut. The external urethral sphincter originates
  • External anal sphincter: The external anal sphincter (or sphincter ani externus ) is a flat plane of muscular fibers, elliptical in shape and intimately adherent to the integument
  • Internal anal sphincter: The internal anal sphincter, IAS, (or sphincter ani internus) is a muscular ring that surrounds about 2.5-4.0 cm of the anal canal; its inferior border
  • Stephen Sphincter: Stephen Sphincter was an early Gwar character, played by Ron Curry, who recorded six albums on SST Records with Hotel X. His on-stage brother was Hans
  • Internal sphincter muscle of urethra: The internal sphincter muscle of urethra is a urethral sphincter muscle which constricts the internal urethral orifice. It is the junction of the urethra

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Sphincter Sample Sentences in News

  • American Student Gored by Bull in Spain Is Improving After Surgery
    Benjamin Milley suffered injuries to his thighs, sphincter and back muscles Read more on this news related to 'Sphincter'
  • Running of the bulls: man gets his comeup-pants
    THIS guy had to undergo three hours of surgery on his thighs, back and sphincter after being gored by a massive bull. The photos are unbelievable. Read more on this news related to 'Sphincter'
  • American Student Learns the Downside of Running With the Bulls
    This weekend an American college student answered the eternal question—"I wonder if it's worth it to pay money to get close enough to a bull that he could gore my sphincter?"—with a firm no. Read more... Read more on this news related to 'Sphincter'

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