Final answer:
The head of a rib articulates with the costal facets located on the bodies of thoracic vertebrae.
Step-by-step explanation:
Ribs are flattened, curved bones and are numbered 1-12. Posteriorly, the head of the rib articulates with the costal facets located on the bodies of thoracic vertebrae and the rib tubercle articulates with the facet located on the vertebral transverse process.