CAMRT Radiography Practice Exam

When performing a lateral projection of the thoracic spine, what is the primary anatomical structure of interest?

1. Vertebral bodies

2. Intervertebral foramina

3. Spinous processes

4. Transverse processes

The correct answer is: Vertebral bodies

The primary anatomical structure of interest when performing a lateral projection of the thoracic spine is the vertebral bodies. In this projection, the view allows for an optimal visualization of the vertebrae, particularly the height and alignment of the vertebral bodies. This is crucial for assessing the presence of any abnormalities, such as fractures, degenerative diseases, or tumors that may affect these structures. While intervertebral foramina, spinous processes, and transverse processes are important components of the thoracic spine, they are not the primary focus in a standard lateral projection. The foramina are viewed at an angle and may be better visualized in an oblique projection. The spinous processes and transverse processes can be seen in this view, but they serve as secondary landmarks compared to the vertebral bodies, which are more centrally and clearly delineated in this projection. Thus, the emphasis on the vertebral bodies in a lateral projection is key to evaluating spinal integrity and health.