otosalpinx

a tube 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 tube (isthmus); the auditory tube enables equalization of pressure within the tympanic cavity with ambient air pressure, referred to commonly as "popping of the ears."

Synonym(s): tuba auditiva [TA], auditory tube ☆ , tuba auditoria ☆ , eustachian tube, guttural duct, otopharyngeal tube, otosalpinx, tuba acustica, tuba eustachiana, tuba eustachii

A tube 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 tube (isthmus); the auditory tube enables equalization of pressure within the tympanic cavity with ambient air pressure, referred to commonly as "popping of the ears."
Synonym(s): salpinx (2) [TA] , tuba auditiva [TA] , auditory tube, eustachian tube, tuba auditoria.

A tube leading from the tympanic cavity to the nasopharynx.
Synonym(s): auditory tube.