Aryepiglottidean folds, also referred to as aryepiglottic folds or false vocal cords, are anatomical structures located within the larynx, which is the voice box. These folds play a significant role in protecting the airway during swallowing and respiration.
The aryepiglottidean folds are situated above the true vocal cords, extending from the arytenoid cartilages at the back of the larynx to the epiglottis at the front. They are formed by folds of mucous membrane that consist of connective tissue covered with a protective, stratified squamous epithelium.
Functionally, the aryepiglottidean folds aid in preventing the passage of food, liquid, or saliva into the larynx and the lower respiratory tract while swallowing. They act as a barrier by moving towards the midline during swallowing, effectively sealing off the entrance to the larynx.
Additionally, the aryepiglottidean folds contribute to voice production and resonance. While the true vocal cords are responsible for phonation (the production of sound), the aryepiglottidean folds can engage during certain vocalizations, adding depth and resonance to the voice.
In summary, the aryepiglottidean folds are anatomical structures located within the larynx that function as protective barriers during swallowing and respiration. They prevent the entry of substances into the airway and may contribute to vocalization.
