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  • Look up sphincter in Wiktionary, the free dictionary. A sphincter is a circular muscle that normally maintains constriction of a natural body passage...
    5 KB (503 words) - 23:39, 14 April 2024
  • Thumbnail for Urethral sphincters
    urethral sphincter and the internal urethral sphincter. When either of these muscles contracts, the urethra is sealed shut. The external urethral sphincter originates...
    8 KB (948 words) - 22:00, 4 October 2024
  • Thumbnail for Esophagus
    known respectively as the upper esophageal sphincter and the lower esophageal sphincter. These sphincters act to close the esophagus when food is not...
    46 KB (5,422 words) - 06:52, 2 November 2024
  • Thumbnail for Sphincter of Oddi
    The sphincter of Oddi (also hepatopancreatic sphincter or Glisson's sphincter), abbreviated as SO, is a muscular valve that in some animals, including...
    7 KB (671 words) - 20:37, 14 February 2024
  • Thumbnail for External anal sphincter
    The external anal sphincter (or sphincter ani externus) is an oval tube of skeletal muscle fibers. Distally, it is adherent to the skin surrounding the...
    5 KB (501 words) - 16:14, 13 May 2024
  • Thumbnail for Precapillary sphincter
    A precapillary sphincter is a band of contractile mural cells either classified as smooth muscle or pericytes that adjusts blood flow into capillaries...
    5 KB (480 words) - 17:37, 23 June 2022
  • The sphincter of Boyden (also known as the choledochal sphincter) is a sphincter located in the common bile duct before it joins with the pancreatic duct...
    3 KB (314 words) - 15:24, 15 February 2024
  • Sphincter paralysis is paralysis of one of the body's many sphincters, preventing it from constricting normally. Case studies have shown patients may...
    721 bytes (72 words) - 02:19, 8 July 2024
  • Thumbnail for Internal anal sphincter
    The internal anal sphincter, IAS, or sphincter ani internus is a ring of smooth muscle that surrounds about 2.5–4.0 cm of the anal canal. It is about 5 mm...
    9 KB (896 words) - 00:59, 18 August 2024
  • Stephen Sphincter was an early Gwar character, played by Ron Curry, who then recorded six albums on SST Records with Hotel X. His on-stage brother was...
    977 bytes (44 words) - 21:04, 17 March 2023
  • Thumbnail for 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...
    5 KB (472 words) - 19:22, 14 September 2024
  • Anal sphincter muscles may refer to: External anal sphincter Internal anal sphincter This disambiguation page lists articles associated with the title...
    318 bytes (45 words) - 16:37, 2 January 2018
  • Thumbnail for Sphincter of Oddi dysfunction
    Oddi: functional biliary sphincter of Oddi and functional pancreatic sphincter of Oddi disorder. The sphincter of Oddi is a sphincter muscle, a circular band...
    10 KB (1,283 words) - 01:49, 8 November 2023
  • External sphincter muscle of urethra can refer to: external sphincter muscle of male urethra external sphincter muscle of female urethra This disambiguation...
    167 bytes (55 words) - 11:22, 28 December 2019
  • Thumbnail for Bladder sphincter dyssynergia
    Bladder sphincter dyssynergia (also known as detrusor sphincter dyssynergia (DSD) (the ICS standard terminology agreed 1998) and neurogenic detrusor overactivity...
    4 KB (385 words) - 14:25, 26 July 2024
  • Thumbnail for Pylorus
    Pylorus (redirect from Pyloric sphincter)
    the duodenum. The orifice is surrounded by a sphincter, a band of muscle, called the pyloric sphincter. The word pylorus comes from Greek πυλωρός, via...
    9 KB (962 words) - 05:02, 23 October 2024
  • Sphincter ani can refer to: Sphincter ani externus muscle Sphincter ani internus muscle This disambiguation page lists articles associated with the title...
    119 bytes (45 words) - 04:40, 30 December 2019
  • Thumbnail for Internal urethral sphincter
    The internal urethral sphincter is a urethral sphincter muscle which constricts the internal urethral orifice. It is located at the junction of the urethra...
    6 KB (609 words) - 15:35, 2 July 2024
  • Thumbnail for Artificial urinary sphincter
    urinary sphincter that restricts urine flow out of the bladder. There are two types of artificial urinary sphincters: The artificial urinary sphincter with...
    35 KB (3,687 words) - 16:22, 3 January 2024
  • Thumbnail for Urethra
    tract. The external urethral sphincter is a striated muscle that allows voluntary control over urination. The internal sphincter, formed by the involuntary...
    27 KB (2,601 words) - 17:16, 5 November 2024
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