Cricoid Cartilage
The Cricoid Cartilage is located inferior to the laryngeal prominence at the level of C6 vertebra. It is a signet shaped ring with its band facing anteriorly.

The cricoid cartilage is a useful landmark. It indicates the level of the C6 vertebra. It marks the transition point of the pharynx esophagus, and the larynx trachea. The common carotid artery may be compressed against the anterior tubercle of C6, and the recurrent laryngeal nerve enters the larynx.