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The anus is normally kept closed by the sustained contraction of two _______ muscles

The anus is normally kept closed by the sustained contraction of two _______ muscles
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The anus is normally kept closed by the sustained contraction of two _______ muscles

User Dusan Radovanovic
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1 Answer

7 votes

Answer:

sphincter

Step-by-step explanation:

the anus is normally kept closed by the sustained contraction of two sphincter muscles

User Max Ma
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