The cushion of the epiglottis is a structure at the base of the tongue that prevents food and liquid from entering the trachea during swallowing. The word "cushion" is spelled kuʃən, with the "sh" sound represented by the letter combination "sh" and the "uh" sound represented by the letter "u." The word "epiglottis" is spelled ɛpɪˈɡlɒtɪs, with the stress on the second syllable and the "gl" sound represented by the letter combination "gl." Proper pronunciation of these words is important for medical professionals to communicate accurately about patients' anatomy and procedures.
The cushion of the epiglottis refers to a pad-like structure situated at the base of the tongue, specifically within the oropharynx region of the throat. It is an anatomical feature that aids in the protection of the airway during swallowing by preventing the entry of food or liquids into the trachea.
This cushion is formed by the presence of soft tissues including muscles and glands, and its main component is the epiglottis itself. The epiglottis is a leaf-shaped cartilaginous structure that is located superior to the larynx, or voice box. Its main function is to act as a switch-like mechanism during swallowing, directing food and liquids into the esophagus while blocking off the trachea to prevent choking or aspiration. The cushion of the epiglottis plays a crucial role in this process.
When swallowing occurs, the tongue pushes the food or liquid backward towards the oropharynx. The cushion of the epiglottis, in coordination with other structures such as the aryepiglottic folds, works to cover the opening of the larynx, ensuring that the material being swallowed passes safely into the esophagus and not down the trachea. It acts as a protective barrier, providing a seal that prevents unwanted passage into the lower respiratory tract.
Overall, the cushion of the epiglottis functions as a crucial anatomical component in the process of swallowing, contributing to the protection and airway safety by redirecting food and liquids away from the trachea.
Tuberculum epiglotticum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.