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Glottis Illustration and Icon
Glottis
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An anatomical illustration showing the opening between the paired true vocal folds, viewed from above. This anatomical structure resides within the larynx of the upper respiratory tract (URT) in Homo sapiens (human) and is part of the phonatory apparatus. In the biological hierarchy, it is a substructure of the larynx within the respiratory system. In anatomy and physiology/otolaryngology, it regulates airflow to the trachea, enables phonation by modulating vibration of the vocal folds (VF), and aids airway protection during swallowing. The site is the neck, superior to the trachea.
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