The muscles that are involved in the conscious control of the defecation and urination. Introduction: The external anal sphincter is the circular muscle of the urogenital diaphragm, which is important for the voluntary control of the defecation and urination. Itis located around the terminal portion of the anal canal, that is, anus.

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Chapter 9.3, Problem 6QC

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The muscles that are involved in the conscious control of the defecation and urination.

Introduction:

The external anal sphincter is the circular muscle of the urogenital diaphragm, which is important for the voluntary control of the defecation and urination. Itis located around the terminal portion of the anal canal, that is, anus.

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