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2nd Rib

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Jun 25, 2015

The second rib is longer, straighter, and thinner than the first rib, although overall its curvature is very similar to that of the first. It has two surfaces that articulate with the first and second thoracic vertebrae (T1 and T2), and it also has a small rounded projection, or tubercle, where muscles are attached.