Anal columns (Columns of Morgagni or less commonly Morgagni's columns) are a number of vertical folds, produced by an infolding of the mucous membrane and some of the muscular tissue in the upper half of the lumen of the anal canal. They are named after Giovanni Battista Morgagni who also has several other eponyms named after himself.
Famous quotes containing the word columns:
“The newspapers, I perceive, devote some of their columns specially to politics or government without charge; and this, one would say, is all that saves it; but as I love literature and to some extent the truth also, I never read those columns at any rate. I do not wish to blunt my sense of right so much.”
—Henry David Thoreau (1817–1862)