Anal columns

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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 As such, some of the information contained herein may be outdated.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.

v • d • e WikiDoc Research Resources for Anal columns
Articles on Anal columns	Most recent articles on Anal columns • Most cited articles on Anal columns • Review articles on Anal columns • Articles on Anal columns in N Eng J Med, Lancet, BMJ
Media (Slides, Video, Images, MP3) on Anal columns	Powerpoint slides on Anal columns • Images of Anal columns • Photos of Anal columns • Podcasts & MP3s on Anal columns • Videos on Anal columns
Evidence Based Medicine Regarding Anal columns	Cochrane Collaboration on Anal columns • Bandolier on Anal columns • TRIP on Anal columns
Cost Effectiveness of Anal columns	Cost Effectiveness of Anal columns
Clinical Trials Involving Anal columns	Ongoing Trials on Anal columns at Clinical Trials.gov • Trial results on Anal columns • Clinical Trials on Anal columns at Google
Guidelines / Policies / Government Resources (FDA/CDC) Regarding Anal columns	US National Guidelines Clearinghouse on Anal columns • NICE Guidance on Anal columns • NHS PRODIGY Guidance • FDA on Anal columns • CDC on Anal columns
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Patient Resources on Anal columns	Patient resources on Anal columns • Discussion groups on Anal columns • Patient Handouts on Anal columns • Directions to Hospitals Treating Anal columns • Risk calculators and risk factors for Anal columns
Healthcare Provider Resources on Anal columns	Symptoms of Anal columns • Causes & Risk Factors for Anal columns • Diagnostic studies for Anal columns • Treatment of Anal columns
Continuing Medical Education (CME) Programs on Anal columns	CME Programs on Anal columns
International Resources on Anal columns	Anal columns en Espanol • Anal columns en Francais
Business Resources on Anal columns	Anal columns in the Marketplace • Patents on Anal columns
Informatics Resources on Anal columns	List of terms related to Anal columns

v • d • e Anatomy of torso, digestive system: Gastrointestinal tract
Upper GI: to stomach	Mouth • Pharynx (nasopharynx, oropharynx, hypopharynx) • Esophagus • Crop
Upper GI: stomach	rugae - gastric pits - cardia/gland - fundus/gland - pylorus/gland - pyloric antrum - pyloric canal - greater curvature - lesser curvature - angular incisure
Lower GI: intestines	Small intestine: Duodenum (Suspensory muscle, Major duodenal papilla, Minor duodenal papilla) • Duodenojejunal flexure • Jejunum • Ileum • continuous (intestinal villus, crypts of Lieberkühn, circular folds) Junction: Vermiform appendix • Ileocecal valve Large intestine: Cecum • Colon (ascending colon, hepatic flexure, transverse colon, splenic flexure, descending colon, sigmoid colon) • continuous (taenia coli, haustra, epiploic appendix)
Lower GI: termination	Rectum: Houston valve • rectal ampulla • pectinate line Anal canal: anal valves • anal sinuses • anal columns • Hilton's white line Anus: Sphincter ani internus muscle • Sphincter ani externus muscle
Lower GI: lymph	GALT: Peyer's patches (M cells)

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .