Rib II, like rib I, is flat but twice as long. It articulates with the vertebral column in a way typical of most ribs.
The head of rib X has a single facet for articulation with its own vertebra.
Ribs XI and XII articulate only with the bodies of their own vertebrae and have no tubercles or necks. Both ribs are short, have little curve, and are pointed anteriorly.