The function of the Eustachian tube under atmospheric pressure, on the grounds of our studies, is discussed as follows: (1) Criteria of natural valvular function of the auditory tube under a normal pressure environment. (2) Opening action of the Eustachian tube and mode of swallowing movement in comparison with soft palate movement. (3) High pressure environment and (opening action of) Eustachian tube. (4) Children undergoing tubing and their Eustachian tube function. (5) Ventilatory function of the Eustachian tube under normal pressure conditions. (6) Factors influencing changes in pressure in the tympanic cavity.

Keywords:
Sonotubometric test, Middle ear gas tension, Mastoid air cells
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© 1988 S. Karger AG, Basel
1988
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