The cricoid cartilage is an important structure in the respiratory system. It forms a complete ring around the trachea and provides support for the vocal cords. The spelling of "cricoid" is pronounced [ˈkraɪkɔɪd] using the International Phonetic Alphabet (IPA). This word is derived from the Greek word "krikoeides," which means "ring-shaped." The spelling of "cartilage" is pronounced [ˈkɑːtɪlɪdʒ]. Correct spelling of medical terminology is crucial to ensure clear communication between medical professionals and accurate diagnosis and treatment of patients.
The cricoid cartilage is a key anatomical structure located in the larynx, or voice box, within the neck. It is a ring-shaped hyaline cartilage that forms the lowermost part of the larynx, situated just above the trachea. The term "cricoid" derives from the Greek word "krikoeides," which means "ring-shaped."
The cricoid cartilage is primarily responsible for providing structural support and maintaining the shape of the larynx. It plays a crucial role in helping to protect the airway and ensuring unobstructed airflow during breathing, swallowing, and vocalization.
This cartilage is unique in its shape, with the posterior side being considerably larger and broader than the anterior side. It forms a complete ring that encircles the trachea, providing essential rigidity to the larynx. In addition to its structural function, the cricoid cartilage also helps protect the vocal folds or cords, which are responsible for phonation.
The cricoid cartilage is connected to several important surrounding structures. It articulates with the thyroid cartilage above it and with the first ring of the trachea below it. This allows for coordinated movements of the larynx during speech and swallowing.
Understanding the anatomy and function of the cricoid cartilage is fundamental in various medical fields. Surgeons rely on this knowledge for procedures involving the larynx, including tracheostomies and surgeries to treat conditions such as vocal fold paralysis or stenosis.
See under cartilago.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "cricoid" is derived from the Greek word "krikoeidēs", which means "ring-shaped". "Cartilage" comes from the Latin word "cartilago", denoting the tough, flexible connective tissue found in various parts of the body. Therefore, "cricoid cartilage" refers to the ring-shaped cartilage structure that forms the base of the larynx or voice box.