Yes. There are twelve thoracic vertebrae and a pair of ribs associated with each of them.
The individual units of the backbone are called vertebrae.
Thoracic vertebrae are attached to a pair of ribs
Each individual bone in your back is a vertebra (plural vertebrae).
A pair of spectacles has an individual lense, one for each eye.
Between each pair of vertebrae, you can find an intervertebral disc which acts as a shock absorber and provides cushioning for the spine. The disc consists of a tough outer layer called the annulus fibrosus and a soft inner core known as the nucleus pulposus.
Each thoracic vertebrae is associated with a pair of ribs; therefore, there are 12 pairs of ribs around the chest cavity.
vertebrae
The individual bones of the spine are called vertebrae. There are 33 vertebrae in total, categorized into five regions: cervical (neck), thoracic (upper back), lumbar (lower back), sacral (pelvis), and coccygeal (tailbone).
Individual vertebrae make up the spinal cord.
When you get wire that is a shielded pair, you get two individual conductors that are each individually insulated from each other, and the pair is twisted and wrapped with a thin layer of foil to provide electromagnetic shielding to the pair. Occationally you'll see the pair is surrounded with a braided shield, but not commonly. That's your shielded pair.
Spine or the individual bones that make it up are called Vertebrae (singular: vertebra).