Larynx
The larynx is composed of nine cartilage structures

Three large Single Cartilages
• Epiglottis
• Thyroid
• Cricoid

Three Paired Cartilages
• Arytenoids
• Cuneiforms
• Corniculates

The cricoid cartilage is the only circumferential cartilage of the trachea.
This is an important landmark used during tracheostomy.


Vertical tracheal incision during a tracheotomy procedure. (From Kersten LD. Comprehensive Respiratory Nursing: A Decision-Making Approach. Philidelphia, Pa: W>B> Saunders; 1989:654

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