Note 9 — Chapter XX · ANESTHESIA AND ANESTHETICS, GENERAL AND LOCAL.
Reading edition
Freudenthal has called attention to the extreme irritability of both surfaces of the epiglottis, and advises to pass the index finger down upon it, irritating it by friction. This causes a powerful reflex effect, as the glossopharyngeal supplies its anterior surface and the inner branch of the superior laryngeal its posterior surface.