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Why is it important for the external sphincter to have voluntary control?

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User MCMatan
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2 Answers

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It is controlled my the nervous system
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User Pavel Ryvintsev
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Answer:

"The external muscle helps maintain continence and keep stool in the rectum. The inner muscle is not under voluntary control but rather is controlled by the autonomic nervous system. The external sphincter can be voluntarily controlled, meaning it can be clenched and unclenched"

Step-by-step explanation:

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User Gimbl
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