Anorectal Anatomy and Physiology

  • Ravi Moonka
  • Joseph C. Carmichael


In this chapter, the anatomy of the anal canal, rectum and pelvic floor will be reviewed in detail with clinical correlations to the relevant surgical anatomy whenever possible. After a complete discussion of the anatomy, the physiology of anorectum and pelvic floor will be addressed with special attention regarding the physiology of defecation and fecal continence. Colonic motility plays a direct role in the physiology of defecation and will also be covered in this chapter.


Anatomy Physiology Rectum Anus Anal sphincter Defecation Continence 


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© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of SurgeryVirginia Mason Medical CenterSeattleUSA

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