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


  • Health Beat: Fixing GERD for good
    For 12 years, Kathy Dickinson lived with the painful symptoms of GERD, which happens when the lower esophageal sphincter weakens and allows food to flow up. For Dickinson, it meant coughing, pain and no sleep. "It would happen in the morning. It would happen after I ate. It would happen at night. It was, and it just progressively got worse and worse and worse Read more on this news related to 'Sphincter'

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