I was wondering if anyone knew....?

about spine concavity?

What regions are concave and which are convex?
Assuming the orientation is from the side, and the skeleton is facing to your left, so your looking at their left side

Anonymous2009-10-07T19:00:09Z

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Concave is anywhere in the spine that is curving INTO (toward) your body's center (heart region).

Concave sections of the spine would include the lumbar. Convex sections would be the thoracic.