Which term describes the thoracic portion of the spine?

• A. T-spine
• B. L-spine
• C. C-spine
• D. Sacral spine

Answer: (A)

The term for the middle portion of the spine is the thoracic spine, often abbreviated as the T-spine. This region sits between the cervical (neck) and lumbar (lower back) sections and comprises twelve vertebrae (T1–T12). It’s the part of the spine that typically articulates with the ribs, giving it a unique role in the thoracic cage.

Choosing the thoracic spine as the description fits exactly because it names the specific region of the spine in contrast to the other regions. The L-spine refers to the lumbar region in the lower back, the C-spine to the cervical region in the neck, and the sacral spine refers to the sacrum.