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:
“Newspaperman: That was a magnificent work. There were these mass columns of Apaches in their war paint and feather bonnets. And here was Thursday leading his men in that heroic charge.
Capt. York: Correct in every detail.
Newspaperman: He’s become almost a legend already. He’s the hero of every schoolboy in America.”
—Frank S. Nugent (1908–1965)