Rectal ampulla

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Rectal ampulla
Anatomy of human rectum and anus-2.png
The rectal ampulla is labeled in this illustration.
Latin ampulla recti
Gray's p.1183
TA A05.7.04.008
FMA 15721
Anatomical terminology

The rectal ampulla (or ampulla recti) is the dilated section of the rectum where feces are stored until they are eliminated via the anal canal. The caliber of the rectum at its commencement is similar to that of the sigmoid colon, but near its termination it dilates, forming the ampulla. An ampulla is a cavity, or the dilated end of a duct, shaped like a Roman ampulla.


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

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