Anal sinuses

Anal sinuses
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	Sinus anales
Dorlands /Elsevier	12738546
TA	A05.7.05.006
FMA	76584
*Anatomical terminology* [edit on Wikidata]

The anal sinuses (rectal sinuses) are furrows in the anal canal, that separate the anal columns from one another. The anal sinuses end below in small valve-like folds, termed anal valves.

References

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

External links

Anatomy photo:43:11-0106 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

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

This article is issued from Wikipedia - version of the Tuesday, June 09, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.