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One such reflex is a cough. This is typically triggered when the larynx senses that something has penetrated this upper portion of the airway. The cough, then, acts as a protective mechanism, serving to cough out or expel something at risk for being inhaled. There are normal reflexive thresholds or âtriggersâ that exist in the larynx. When these thresholds are lowered (i.e., more sensitive), less stimulation is required to trigger a cough.
vomiting reflex the reflex for vomiting, caused by reflexive stimulation of muscles of the gastrointestinal tract and throat; it is mediated by centers in the medulla oblongata and can be set in motion by a variety of stimuli.ough reflex the sequence of events initiated by the sensitivity of the lining of the airways and mediated by the medulla as a consequence of impulses transmitted by the vagus nerve, resulting in coughing, i.e., the clearing of the passageways of foreign matter.