As human beings we are designed to have one controlled and voluntary defecation per day. This is accomplished by the integrated function of the left side of the colon acting as a fecal reservoir, and the accommodative and expulsive activity of the rectum; the organ of defecation. A consideration of rectal anatomy and physiology makes this plain.

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What Aspects of Rectal Anatomy and Physiology Reveal Its Unique Purpose as an Organ of Defecation?

  • James M. Church

摘要

As human beings we are designed to have one controlled and voluntary defecation per day. This is accomplished by the integrated function of the left side of the colon acting as a fecal reservoir, and the accommodative and expulsive activity of the rectum; the organ of defecation. A consideration of rectal anatomy and physiology makes this plain.