The thoracic spine is the region between the neck and lower back. Its 12 vertebrae, labeled T1 through T12, connect with the ribs.
The thoracic region has a natural outward curve. The word thoracic names a body region; it does not describe a condition or a posture that needs correcting.
Vertebrae are the bones that form the spine. The singular word is vertebra. Together, these bones provide support and form a protective passage for the spinal cord and nerves.
The cervical spine is the neck region of the spine. It contains seven vertebrae, labeled C1 through C7, and supports the head.
The lumbar spine is the lower-back region of the spine. It usually contains five vertebrae, labeled L1 through L5, and supports much of the upper body’s weight.