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From: Peter Langston <psl>
Date: Wed, 3 Feb 99 15:07:00 -0800
Subject: Anatomy Lesson
What's the purpose of the groove in our upper lip?
Before I answer this question, a proper introduction is in order: meet your
philtrum. If you researched this question at your local playground, you
might conclude that the function of the philtrum is to provide storage for
snot until a grownup arrives with a tissue.
As noble a calling as that may be, it is not the purpose of the philtrum.
That's because the philtrum has no purpose. It's one of a bunch of
merger-lines known as "raphes". As our tiny embryonic selves are developing,
the right and left sides are merged at various points on the body, leaving
a raphe at the meeting point. Other raphes can be found on the middle of
the tongue, in the dent under the point of your chin, and other, far more
personal parts of your body.
(Source: WHEN DID WILD POODLES ROAM THE EARTH? By David Feldman)
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© 1999 Peter Langston