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URL of this page: //medlineplus.gov/ency/imagepages/9629.htm
Anal sphincter anatomy
Overview
The muscles in the anal sphincter are used in the process of defecation.
Review Date 10/30/2024
Updated by: Jenifer K. Lehrer, MD, Gastroenterologist, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
