T1 vertebra (anatomy)
Last reviewed 01/2018
The first thoracic vertebra shares features of the superior cervical vertebrae:
- triangular vertebral foramen
- body:
- oval and broadest in coronal plane
- has posterolateral lipping of superior body surface - the uncus
- single oval costal facets at upper margin of posterolateral junctions with pedicles
- spinous process horizontal and projects posteriorly
- superior and inferior articular processes are more horizontal than those of inferior vertebrae