is it true we need 43 muscles to frown and only 17 to smile?

Subject: is it true we need 43 muscles to frown and only 17 to smile?

Date: Wed Jun 18 08:23:49 2008
Posted by Cat
Grade level: undergrad School: No school entered.
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Area of science: Anatomy
ID: 1213802629.An

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Re: is it true we need 43 muscles to frown and only 17 to smile?

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