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Rectum - Anatomy & Physiology (view source)
Revision as of 08:21, 12 July 2008
, 08:21, 12 July 2008→Structure
**These are normally pressed together to occlude the lumen.
**These are normally pressed together to occlude the lumen.
*There are ''two'' anal sphincters:
*There are ''two'' anal sphincters:
**'''Internal anal sphincter''', formed by thickening of the circular smooth muscle of the gut and under autonomic control.
**'''External anal sphincter''', formed from striated skeletal muscle and under voluntary control.
==Function==
==Function==