Which of the following structures does NOT articulate with the ribs?

The lumbar vertebrae do not articulate with the ribs, making the selection appropriate. In the human spine, ribs are specifically associated with the thoracic vertebrae, where each rib connects to a corresponding thoracic vertebra at the costovertebral joint. This unique articulation is essential for the protection of thoracic organs and the overall structure of the rib cage.

Cervical vertebrae also lack the features necessary to articulate with ribs. They are designed primarily for the flexibility of the neck and do not possess the costal facets that characterize the thoracic vertebrae. Therefore, although they are in the region where ribs might be expected anatomically, they do not actually connect with them in the way thoracic vertebrae do.

As a consequence, the lumbar vertebrae, which are located lower in the back and are primarily responsible for bearing weight and providing structural stability, are devoid of any rib articulation. Their structure lacks the specific facets required for such connections, further reinforcing that they do not participate in this aspect of anatomy.