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 anal columns and the anal valves between their lower ends (the columns were more numerous in the specimen than usual)
Details
Identifiers
Latin	columnae anales
Dorlands /Elsevier	12251084
TA	A05.7.05.004
FMA	76435
*Anatomical terminology*

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.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

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)

Anatomy of the gastrointestinal tract, excluding the mouth

Upper

Pharynx	Muscles Spaces peripharyngeal retropharyngeal parapharyngeal retrovisceral danger prevertebral Pterygomandibular raphe Pharyngeal raphe Buccopharyngeal fascia Pharyngobasilar fascia Piriform sinus
Esophagus	Sphincters upper lower glands
Stomach	Curvatures greater lesser Angular incisure Cardia Body Fundus Pylorus antrum canal sphincter Gastric mucosa Gastric folds Microanatomy Gastric pits Gastric glands Cardiac glands Fundic glands Pyloric glands Foveolar cell Parietal cell Gastric chief cell Enterochromaffin-like cell

Lower

Small intestine

Microanatomy	Intestinal villus Intestinal gland Enterocyte Enteroendocrine cell Goblet cell Paneth cell
Duodenum	Suspensory muscle Major duodenal papilla Minor duodenal papilla Duodenojejunal flexure Brunner's glands
Jejunum	No substructures
Ileum	Ileocecal valve Peyer's patches Microfold cell

Large intestine

Cecum	Appendix
Colon	Ascending colon Hepatic flexure Transverse colon Splenic flexure Descending colon Sigmoid colon Continuous taenia coli haustra epiploic appendix
Rectum	Transverse folds Ampulla
Anal canal	Anus Anal columns Anal valves Anal sinuses Pectinate line Internal anal sphincter Intersphincteric groove External anal sphincter

Wall

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