Cuneiform cartilages

Cuneiform cartilages are small, paired cartilages located in the larynx, specifically within the aryepiglottic fold. They are part of the laryngeal skeleton, which is made up of nine cartilages. The cuneiform cartilages are among the three paired cartilages in the larynx, the other two being the arytenoid cartilages and the corniculate cartilages.

Etymology

The term "cuneiform" is derived from the Latin word "cuneus", which means "wedge". This is due to the wedge-like shape of these cartilages.

Structure

The cuneiform cartilages are small, elongated pieces of yellow elastic cartilage. They are located in the aryepiglottic fold, which is a fold of mucous membrane running from the epiglottis to the arytenoid cartilages. The cuneiform cartilages provide support and stiffness to the aryepiglottic folds.

Function

The primary function of the cuneiform cartilages is to support the vocal apparatus and to help maintain the opening of the larynx. They also contribute to the structure of the epiglottic vallecula, a space at the base of the tongue between the folds of the epiglottis.

Clinical significance

Abnormalities or injuries to the cuneiform cartilages can affect voice production and breathing. For example, laryngeal cancer can involve the cuneiform cartilages, leading to symptoms such as hoarseness, difficulty swallowing, and shortness of breath.

See also

• Larynx
• Cartilage
• Arytenoid cartilage
• Corniculate cartilage
• Epiglottis

Cuneiform cartilages Resources
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