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In medicine, laryngospasm is an uncontrolled/involuntary muscular contraction (spasm) of the vocal folds. The condition typically lasts less than 60 seconds, but in some cases can last 20-30 minutes and causes a partial blocking of breathing in, while breathing out remains easier.
Pharyngeal reflex. From Wikipedia, the free encyclopedia. The pharyngeal reflex or gag reflex (also known as a laryngeal spasm) is a reflex contraction of the back of the throat, evoked by touching the roof of the mouth, the back of the tongue, the area around the tonsils and the back of the throat.bout a third of healthy adults do not have a gag reflex. However, in certain cases, absence of the gag reflex and pharyngeal sensation can be a symptom of a number of severe medical conditions, such as damage to the glossopharyngeal nerve, the vagus nerve, or brain death.