Involuntary sphincter tone in the maintenance of continence.
D001003:Anal Canal / Q000502:physiology* / Q000601:surgery; D003672:Defecation; D005242:Fecal Incontinence / Q000209:etiology; D006801:Humans; D009129:Muscle Tonus; D009130:Muscle, Smooth / Q000502:physiology; D011183:Postoperative Complications; D012007:Rectum / Q000502:physiology