Coronal section of rectum and anal canal.
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.
- Anatomy photo:43:11-0105 at the SUNY Downstate Medical Center - "The Female Pelvis: The Rectum"
- pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (rectum)
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