Gag Reflex

Neurology, Otorhinolaryngology

Also known as: Pharyngeal Reflex, Vomiting 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Historical document, translated for reference.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

Gag Reflex: figure 1 from the 1928–1936 encyclopedia article

Lciodi-rrna mil s rfiiciun branctiialk 11 Orsopluf in Phc. 1.

Gag Reflex: figure 2 from the 1928–1936 encyclopedia article

- t Put, :.'. ►'i>ii. 1. Cittu рагпнтн* глтточиоа matnt no Snts^y. /-jmuuiu щигпиилипй железы, 3 и 3 - мкллдм ПИШИ II крлисго мктелкальпых лака; У- inJMiMi юбкой жм«м: S-mmiak» гтпор»<a«*лт«и тыи.шн S- шруиэшй слухsnot проход: 7-civum lympaiil: * tub» auuilive; /. /f, III, !Y\ V- пкяочмые, "ли жаберные пращи. Рнс. t. Скгмл ибраздм.-пн рлзлячыыл сгргшон из ждЛсрыых нлриыюл y и^аши. J ductus lliym-glowi*: 2- щнтсяклмк или; -.'я h Ju H1[жи« it «psitcis sninel. тельца; tf-зоонлл железа; Л - liiiinitii cictuni; li -isukl 7-ярождеииыя cn«ru к 11 штпшшу клрилну: J - врожденный гвшц к lit глиточш>ыу клрилну, C. M. 3. K гт. Гютп*.*ax 4нШ1№. It is often also absent in hysteria; its absence has long been considered one of the stigmata of this neurosis. (However, it is not constant even in normal conditions, although in most cases its presence is noted, so its examination is not without diagnostic interest.)

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/