The arytenoid cartilage is a small, paired cartilage in the larynx that plays an important role in speaking and breathing. In medical language, it is also known as "Cartilago arytaenoidea".
Structure and position in the larynx
The human larynx contains several different cartilage structures. The most important ones include the thyroid cartilage, the cricoid cartilage, and the arytenoid cartilage. Every person has two arytenoid cartilages, positioned on the left and right at the upper rear edge of the cricoid cartilage. They are pyramid-shaped and relatively small, but still very important for how the larynx works.
The arytenoid cartilages are connected to the cricoid cartilage by small joints. This allows them to move and rotate. Important muscles and ligaments attach to them, and these are responsible for moving the vocal folds.
Function of the arytenoid cartilages
The main job of the arytenoid cartilages is to tense, relax, open, and close the vocal folds (also commonly called vocal cords). This is essential for producing the voice and for controlling the flow of air into the windpipe.
When breathing, the arytenoid cartilages keep the vocal slit wide open so that enough air can reach the lungs. When speaking or singing, they change the tension and position of the vocal folds through precise movements, which produces different pitches and volumes. They also play a role in swallowing by helping to close off the airways, preventing food or liquid from entering the windpipe.
When does the term arytenoid cartilage appear in a medical letter or report?
The term arytenoid cartilage usually appears in reports when the larynx has been examined, for example through a laryngoscopy or imaging such as a CT or MRI scan. Doctors will often describe whether both arytenoid cartilages look normal and move normally. This is especially important when someone has symptoms such as hoarseness, voice changes, swallowing difficulties, or breathing problems.
Sometimes changes to the arytenoid cartilage are reported. This could be, for example, swelling, inflammation, a misalignment, or in rare cases a tumour. In the vast majority of cases, however, the report is simply describing normal anatomy.
Should you be worried if the arytenoid cartilage is mentioned?
The arytenoid cartilage being mentioned in a report is not a reason to worry on its own. Most of the time, it simply means that this area was assessed during the examination. Only if an unusual finding is noted, such as restricted movement or a change in shape or size, could this point to a condition. In that case, your doctor will usually explain in more detail what it means and whether further tests or steps are needed.
Summary
The arytenoid cartilage is a small but important part of the larynx. Together with other structures, it makes speaking, breathing, and swallowing possible. In medical reports, the term usually appears in connection with a larynx examination. Further investigation is only needed if an unusual finding is present. In the vast majority of cases, however, it is simply an anatomical description with no medical concern.
