OverviewThe eustachian tube is the tube that runs between the middle ear and pharynx and regulates the ear pressure around the ear drum.
Update Date 8/1/2012
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.