The next 12 vertebrae. Develops a posterior curvature. Labeled T1 to T12. Supports the ribs. There are 12 pairs of ribs regardless of the sex of the individual.

The thoracic vertebrae, of which there are 12.

the thoracic spine is above the lumbar spine which means ALL thoracic vertebrae are superior to the lumbar vertebrae.

The ribs articulate with the thoracic vertebrae. The thoracic vertebrae also articulate with each other.

Chimpanzees have 13 thoracic vertebrae, the same number as humans.