anal sphincter internal

anal sphincter internal
musculus sphincter ani internus.

Medical dictionary. 2011.

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  • anal sphincter — n either of two sphincters controlling the closing of the anus: a) an outer sphincter of striated muscle extending from the coccyx to the central tendinous part of the perineum and surrounding the anus immediately beneath the skin called also… …   Medical dictionary

  • internal anal sphincter — n ANAL SPHINCTER (b) …   Medical dictionary

  • anal sphincter — noun the sphincter muscle of the anus • Syn: ↑sphincter ani, ↑musculus sphincter ani • Hypernyms: ↑sphincter, ↑anatomical sphincter, ↑sphincter muscle • Part Holonyms: ↑ …   Useful english dictionary

  • internal anal sphincter — noun see anal sphincter …   Useful english dictionary

  • sphincter — A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. SYN: musculus s. [TA], s. muscle [TA]. [G. sphinkter, a band or lace] s. of ampulla s. of hepatopancreatic ampulla. anatomic s.… …   Medical dictionary

  • Anal sex — This article is about the human sexual act. For anal sex in non human animals, see Animal sexual behaviour. Depiction of anal sex on 510 BC Attic red figure …   Wikipedia

  • Anal fistula — DiseaseDisorder infobox Name = Anal fistula ICD10 = ICD10|K|60|3|k|55 ICD9 = ICD9|565.1 An anal fistula is an abnormal connection between the epithelialised surface of the anal canal and (usually) the perianal skin.Anal fistulae originate from… …   Wikipedia

  • Anal fissure — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 673 ICD10 = ICD10|K|60|0|k|55 ICD10|K|60|2|k|55 ICD9 = ICD9|565.0 ICDO = OMIM = MedlinePlus = 001130 eMedicineSubj = med eMedicineTopic = 3532 eMedicine mult = eMedicine2|ped|2938… …   Wikipedia

  • Sphincter ani internus muscle — Muscle infobox Name = Sphincter ani internus muscle Latin = musculus sphincter ani internus GraySubject = 120 GrayPage = 426 Caption = Coronal section through the anal canal. B. Cavity of urinary bladder V.D. Ductus deferens. S.V. Seminal vesicle …   Wikipedia

  • Sphincter — A sphincter is an anatomical structure, or a circular muscle, that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals; there …   Wikipedia

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