Aryepiglottic fold

Aryepiglottic fold

The Aryepiglottic fold is a structure in the human anatomy that is part of the larynx. It is a fold of mucous membrane enclosing ligamentous and muscular fibers.

Etymology

The term "aryepiglottic" is derived from the Greek words "arytaina" meaning ladle, and "epiglottis" meaning over the tongue.

Anatomy

The aryepiglottic fold extends from the lateral margin of the epiglottis to the arytenoid cartilage. It forms the upper border of the quadrangular membrane, a part of the larynx. The aryepiglottic fold contains the aryepiglottic muscle, which is a continuation of the oblique arytenoid muscle.

Function

The primary function of the aryepiglottic fold is to help close off the larynx during swallowing, preventing food and liquid from entering the trachea. The aryepiglottic muscle within the fold contracts to pull the epiglottis over the laryngeal inlet, effectively sealing off the airway.

Clinical significance

Abnormalities or injuries to the aryepiglottic fold can lead to difficulties in swallowing, known as dysphagia. In some cases, it can also contribute to sleep apnea, a condition characterized by pauses in breathing during sleep.

See also

• Larynx
• Epiglottis
• Arytenoid cartilage
• Quadrangular membrane
• Oblique arytenoid muscle

References

Aryepiglottic fold Resources
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