Final answer:
A typical thoracic vertebra has a long downward projecting spinous process and is part of the thoracic section of the vertebral column, consisting of 12 vertebrae.
t has articulation sites on the vertebral body and a transverse process for rib attachment.
Step-by-step explanation:
A typical thoracic vertebra features a long and downward projecting spinous process that overlaps the next inferior vertebra.
The thoracic section of the vertebral column consists of 12 vertebrae and is located in the middle region of the spine, between the cervical and lumbar sections.
These thoracic vertebrae also have articulation sites (facets) on the vertebral body and a transverse process for rib attachment, indicating their role in supporting the rib cage and the respiratory system.