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transition from rectum to anal canal; corresponds to the perineal flexure, or the level at which the gut perforates the pelvic diaphragm; here the rectal ampulla narrows abruptly into a narrow slip.
Synonym(s): junctio anorectalis [TA]
Farlex Partner Medical Dictionary © Farlex 2012
anorectal junction(1) Anorectal line; linea anorectalis [NA6, NH3]; dentate line, pectinate line.
(2) Anocutaneous line; linea anocutanea [NH3].
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.