What is the name of the tracheal cartilage that sits directly inferior to the larynx?

The tracheal cartilage that sits directly inferior to the larynx is known as the cricoid cartilage. The cricoid is a complete ring of cartilage that encircles the trachea, providing structural support and maintaining the airway's patency. It plays a crucial role in the respiratory system, as it helps connect the larynx to the trachea and serves as an anchor point for various muscles involved in breathing and vocalization.

The thyroid cartilage, while also part of the laryngeal structure, is located superior to the cricoid and primarily serves to protect the vocal folds. Tracheal rings refer to the series of C-shaped cartilaginous structures that make up the trachea, extending down from the cricoid cartilage. Arytenoid cartilages are small, paired cartilages located at the back of the larynx and serve a different function in regulating tension and movement of the vocal cords. Understanding the anatomy and positioning of these cartilages is essential for effective airway management and recognizing their role in respiratory function.