Anal columns

Anal columns
Coronal section of rectum and anal canal.
The interior of the anal cami and lower part of the rectum, showing the columns of Morgagni and the anal valves between their lower ends. The columns were more numerous in the specimen than usual.
Latin	columnae anales
Gray's	subject #249 1185

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.

External links

• SUNY Labs 43:11-0105 - "The Female Pelvis: The Rectum"
• pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (rectum)

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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