Sphincter

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Sphincter Meaning and Definition in Dictionary

Sphincter Meaning and Definition from WordNet (r) 2.0
    sphincter n : a ring of muscle that contracts to close an opening [syn: anatomical sphincter, sphincter muscle]
Sphincter Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Sphincter \Sphinc"ter\, n. [NL., fr. ??? to bind tight.] (Anat.) A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder.
Sphincter Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Sphincter \Sphinc"ter\, a. (Anat.) Of, pertaining to, or designating, a sphincter; as, a sphincter muscle.

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Wikipedia Meaning and Definition on 'Sphincter'


  • Sphincter: A sphincter is a structure, or a circular muscle , that normally maintains constriction of a natural body passage or orifice and which ...
  • Urethral sphincter: The urethral sphincter is a collective name for the muscle s used to control the flow of urine (micturition) from the urinary bladder . ...
  • Sphincter ani externus muscle: The Sphincter ani externus (external anal sphincter) is a flat plane of muscular fibers, elliptical in shape and intimately adherent to ...
  • External sphincter muscle of urethra: External sphincter muscle of urethra can refer to: external sphincter muscle of male urethra external sphincter muscle of female urethra ...
  • Sphincter of ampulla: The Sphincter of ampulla or Sphincter of Oddi is a muscular valve that controls the flow of digestive juices (bile and pancreatic juice) ...
  • Iris sphincter muscle: The iris sphincter muscle (pupillary sphincter, pupillary constrictor, circular muscle of iris, circular fibers) is a muscle in the part ...
  • Esophageal sphincter: The term esophageal sphincter refers to one of two sphincter s that are part of the esophagus : lower esophageal sphincter which leads into ...
  • Sphincter ani: Sphincter ani can refer to: Sphincter ani externus muscle Sphincter ani internus muscle
  • Sphincter ani internus muscle: The Sphincter ani internus (or internal anal sphincter) is a muscular ring that surrounds about 2.5 cm of the anal canal ; its inferior ...

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Sphincter Sample Sentences in News


  • Sky Sports' Amy Lewis Struggles with Ricky Van Wolfswinkel's Name
    Ricky van Wolfswinkel's name isn't the easiest to pronounce, but Sky Sports anchor Amy Lewis had a particularly challenging time with the Norwich City striker's name.  The mouthful of a name was too much for her, as the video would suggest, as it sounds like she accidentally calls him "Ricky van Wolf-Sphincter."  Which, of course, prompts t Read more on this news related to 'Sphincter'

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