Physio-pathology of the internal anal sphincter.
D000328:Adult; D001003:Anal Canal / Q000294:innervation; D001004:Anus Diseases / Q000503:physiopathology*; D002648:Child; D005242:Fecal Incontinence / Q000209:etiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008531:Megacolon / Q000503:physiopathology / Q000601:surgery; D009130:Muscle, Smooth / Q000503:physiopathology*