Vertebra T8

The thoracic vertebra T8 (8th thoracic vertebra) is part of the middle thoracic spine and has several distinct anatomical features:

• The vertebral body of T8 is heart-shaped and larger than those of the cervical vertebrae but smaller than the lumbar vertebrae.

• The vertebral foramen is circular and smaller compared to the cervical vertebrae.

• The T8 vertebra has a pair of transverse processes that project laterally and slightly posteriorly, each containing a costal facet for articulation with the tubercle of the corresponding rib.

• The spinous process of T8 is long and points downward, overlapping the vertebra below.

• The superior and inferior articular processes are oriented in a coronal plane, allowing for limited rotation and flexion/extension movements.

• The pedicles of T8 are robust and project posteriorly from the upper part of the vertebral body, forming the lateral walls of the vertebral foramen.

• The laminae are broad and thick, forming the posterior part of the vertebral arch.

• The T8 vertebra also has demifacets on the superior and inferior edges of the vertebral body for articulation with the heads of the ribs.