- the grooves between the anal columns;
- pockets or crypts in the columnar zone of the anal canal between the anocutaneous line and the anorectal line; the sinuses give the mucosa a scalloped appearance.
Synonym(s): Morgagni sinus1
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.