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Home > Sphincter

 
From late Latin sphincter, from Greek sphinkter, band, contractile muscle, from sphingein, to bind tight.

A sphincter is a ring-like muscle that normally maintains constriction of a natural body passage or orifice and that relaxes as required by normal physiological functioning.

Some examples of sphincters include:



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SphincterFrom late Latin sphincter from Greek sphinkter band, contractile muscle, from sphingein to bind tight. A sphincter is a ring-like muscle that normally maintains constriction of a natural body passage or orifice and that relaxes as required by normal physi  
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