21. Normally, the Eustachian tube is collapsed, but it gapes open both with swallowing and with positive pressure. 22. He realized the importance of the Eustachian tube and its role in adjusting air pressure in the tympanic cavity. 23. The Eustachian tubes, passages that connect the middle ear with the pharynx, are very complex in crocodilians. 24. The Eustachian tube, which opens near the velopharyngeal sphincter, connects the middle ear and middle ear infections. 25. This is caused by inadequate opening of the Eustachian tube and absorption of air from the middle ear space. 26. Nasal applicators containing 50 milligrams of radium were typically used to shrink tissues at the entrance of the Eustachian tubes. 27. Activities and substances which dehydrate the body have the same effect and are also possible causes of patulous Eustachian tube. 28. Patulous Eustachian tube is frequently misdiagnosed as standard congestion due to the similarity in symptoms and rarity of the disorder. 29. By performing this technique, the compressed air is forced into Eustachian tubes, and thus into the middle ear. 30. You and I have mere eustachian tubes in our ears, maybe stars have some sort of camera magnets in theirs.
