Gag Reflex
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
The gag reflex is triggered by irritation of the posterior pharyngeal wall, causing a vomiting motion. Its neural pathway passes through the glossopharyngeus and vagus nerves, and its absence can indicate nerve damage or hysteria.
Encyclopedia article (1928–1936)
GAG REFLEX, is caused by irritation of the posterior wall of the pharynx with a spatula and manifests as a vomiting motion. The afferent and efferent arcs of the gag reflex pass through the glossopharyngeus and vagus nerves. When these nerves are affected, the gag reflex disappears. It is Hypophytii

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Cite this page
“Gag Reflex.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/gag-reflex/