How Do Sword Swallowers Swallow Swords?

Posted by admin / Under Upper Gastrointestinal Series

Swallowing food involves a series of muscle contractions, both voluntary and involuntary. Swallowing a sword requires no actual swallowing, but the complete opposite: the deliberate relaxation of the upper gastrointestinal (GI) tract.

Published on Friday 12th of March 2010 12:58:42 PM

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