X-ray of the cervical spine in profile locating the odontoid, the posterior arch of the atlas, the 2nd cervical vertebra, the 3rd cervical vertebra, the 4th cervical vertebra, the 5th cervical vertebra, the 6th cervical vertebra, the angle of the mandible, the hyoid bone, the zygapophyseal joint.
Cervical spine (lateral x-ray with legends)