Glossary of Medical Terms

Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine

OTOPHARYNGEAL TUBE

A pipe leading from the tympanic cavity to the nasopharynx; it consists of an osseous (posterolateral) portion at the tympanic end, and a fibrocartilaginous (anteromedial) portion at the pharyngeal end; where the two portions join, in the region of the sphenopetrosal fissure, is the narrowest portion of the pipe (isthmus); the auditory pipe enables equalization of pressure within the tympanic cavity with ambient air pressure, referred to commonly as "popping of the ears". Synonym: tuba auditiva, tuba auditoria, eustachian pipe, guttural duct, otopharyngeal pipe, otosalpinx, pharyngotympanic pipe, salpinx, tuba acustica, tuba eustachiana, tuba eustachii.
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