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 columns of Morgagni and the anal valves between their lower ends. The columns were more numerous in the specimen than usual.
Latin	sinus anales
Gray's	subject #249 1185

The rectal columns are separated from one another by furrows, or rectal sinuses, which end below in small valve-like folds, termed anal valves.

External links

• SUNY Labs 43:11-0106 - "The Female Pelvis: The Rectum"
• Anal+sinuses at eMedicine Dictionary
• pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (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 As such, some of the information contained within it may be outdated.

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