The condition. The Eustachian tube is a narrow tube which links the back of the nose to the middle ear. It is normally closed but opens when we swallow, yawn.
Interventions for adult Eustachian tube dysfunction: a systematic review. Llewellyn A(1), Norman G(1), Harden M(1), Coatesworth A(2), Kimberling D(3), Schilder.
Eustachian tube dysfunction or a blocked Eustachian tube can be caused by In adults, the Eustachian tube is approximately 35 mm long (