2017
DOI: 10.23937/2572-4193.1510032
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Abstract: and requires a coordinated activity of nerves, muscles, the hyoid bone and the larynx [1]. The process can be divided in stages: oral pharyngeal and oesophageal [1].During the pharyngeal stage, the vocal cords adduct to seal the glottis and the arytenoid tilt forward to contact the epiglottis base.When the hyo-laryngeal complex is pulled in anterior and superior direction against the base of the tongue, the epiglottis, acting like a shield, tilts backwards and covers completely the glottis [1]. The bolus desc…

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