【医】肛门括约肌缝术

anal sphincter suture sphincter of Oddi anal musculus sphincter cardiac sphincter vaginal sphincter precapillary sphincter pyloric sphincter anal sucker anal gland anal pit laceration of anal sphincter relaxation of anal sphincter incontinence of anal sphincter Repair of anal sphincter reconstruction of anal sphincter Relaxation of internal anal sphincter Relaxation of external anal sphincter digital dilatation of anal sphincter Contraction of external anal sphincter Repair of obstetric laceration of anal sphincter