Anal columns

Overview

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
Dorlands/Elsevier	c_48/12251084

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The lumen of the anal canal presents, in its upper half, a number of vertical folds, produced by an infolding of the mucous membrane and some of the muscular tissue. They are known as the anal columns (or rectal columns [Morgagni]).

External links

• SUNY Labs 43:11-0105 - "The Female Pelvis: The 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 As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.