ANATOMY

Detailed explanation-1: -The thoracic region contains 12 vertebrae, denoted T1-T12. The intervertebral discs, along with the laminae, pedicles, and articular processes of adjacent vertebrae, create a space through which spinal nerves exit.

Detailed explanation-2: -The eleventh thoracic vertebra (T-11) has an intact, superiorly placed costal facet on each side of the vertebral body but no costal articulation on the transverse processes. The twelfth thoracic vertebra (T-12) resembles T-11, but the inferior articular facets assume the lumbar pattern.

Detailed explanation-3: -The primary characteristic of the thoracic vertebrae is the presence of costal facets. There are six facets per thoracic vertebrae: two on the transverse processes and four demifacets-the facets of the transverse processes articulate with the tubercle of the associated rib.

Detailed explanation-4: -The cervical spine, comprised of seven cervical vertebrae referred to as C1 to C7, is divided into two major segments: the craniocervical junction (CCJ) and the subaxial spine.

Detailed explanation-5: -First thoracic vertebra (T1) Second thoracic vertebra (T2) Third thoracic vertebra (T3) Fourth thoracic vertebra (T4) Fifth thoracic vertebra (T5) Sixth thoracic vertebra (T6) Seventh thoracic vertebra (T7) Eighth thoracic vertebra (T8) More items