Typical cervical vertebrae
There are seven cervical vertebrae (C1 - C7) forming the part of the vertebral column extending between the skull and the thorax.
There are three cervical vertebrae that are considered atypical because of their distinguishing features, and these are the atlas (C1), axis (C2), and the vertebra prominens (C7).
The remaining vertebrae C3 - C6 are typical. Typical cervical vertebrae are characterized mainly by their small size and the presence of a foramen in each transverse process - transverse foramina. Their spinous processes are typically short and bifid (split).
Note, that the sixth cervical vetebra (C6) has a distinguishing feature - a bony prominence called the carotid tubercle on each transverse process.