Definition:
The anus is the opening at the lower end of the alimentary canal through which solid waste is eliminated from the body in the form of fecal matter.
From Sheryl Ankrom, former About.com Guide
Updated July 21, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
The anus is the opening at the lower end of the alimentary canal through which solid waste is eliminated from the body in the form of fecal matter.