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A ______ is a circular band of muscles designed to prevent movement into or out of a body cavity or organ. Multiple choice question.
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A ______ is a circular band of muscles designed to prevent movement into or out of a body cavity or organ. Multiple choice question.

User Firefog
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1 Answer

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5 votes

Answer:

sphincter

Step-by-step explanation:

circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning.

User Raphael Bossek
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