Quiz 6

Image 1:

Questions:

1. Name the examination.
2. Name the labelled structures.
3. Give normal measurement of ‘i’.

Answers:

1. Radiograph of cervical spine in lateral view.
2. The labelled structures:
   1. Mastoid air cells
   2. Anterior arch of atlas
   3. Dens
   4. Spinous process of atlas
   5. Body of axis
   6. Superior articular process of third cervical vertebra
   7. Spinous process of axis
   8. Transverse process of fourth cervical vertebra
   9. Prevertebral soft tissue
   10. Inferior articular process of sixth cervical vertebra
3. The prevertebral soft tissue thickness:
   1. at the level of C2: 6 mm
   2. at the level of C6: 18 mm