SPHR 2104W Lecture Notes - Lecture 20: Vocal Folds, Trachea, Epiglottis
19 Dec 2018
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Swallowing: voluntary and involuntary movements of respiratory and gastrointestinal muscles. Move food and saliva from oral cavity to the stomach. Move bolus to back of oral cavity. Prevent food/liquid from coming out of nose. Create pressure to project bolus into pharynx. Closes vocal folds and epiglottis will lower to prevent food from entering trachea (swallow reflex) Open esophageal segment to allow food to enter esophagus. Muscle move bolus from top of esophagus to stomach. Food falls in larynx but stays above level of vocal folds. Food has fallen below the level of vocal folds (trachea or lower) Food and liquid left in oral cavity/ pharynx after completed swallow. Listen for cough, choke, wet vocal quality, signs of struggle. X ray machine in which food is coated with a substance that can be seen on x rays and a continuous x ray.
