eustaghian tube defined in 1951 yeareustaghian tube - eustaghian tube;
eustaghian tube - Tube connecting middle ear to pharynx in tetrapod vertebrates. Allows air pressure on inner side of ear-drum, i.e. in middle ear, to be equalized with that outside the animal, preventing distortion of ear-drum. See also: Spiracle.
near eustaghian tube in Knolik
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