cranial nerve reflex pharyngeal reflex http://purl.bioontology.org/ontology/SNOMEDCT/33485004 https://en.wikipedia.org/wiki/Pharyngeal_reflex https://www.wikidata.org/wiki/Q1142879 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, the uvula, and the back of the throat. It, along with other aerodigestive reflexes such as reflexive pharyngeal swallowing, prevents objects in the oral cavity from entering the throat except as part of normal swallowing and helps prevent choking, and is a form of coughing. gag reflex pharyngeal gag reflex