Eustachian tube
Maintains healthy pressure of the ear and acts as a drain for waste like mucus
The Eustachian tube, also called the auditory tube, is a small canal that connects the middle ear to the back of the throat. It is located in the temporal bone of the skull, and has a length of approximately 3.5 cm in adults. The Eustachian tube plays an important role in the regulation of air pressure in the middle ear, which is necessary for normal hearing.
The Eustachian tube opens when you chew, swallow, or yawn, allowing air to flow into or out of the middle ear. This helps to equalize the air pressure on both sides of the eardrum, which can become imbalanced due to changes in altitude, changes in external air pressure, or other factors. When the pressure is imbalanced, it can cause discomfort, ear pain, or even temporary loss of hearing.
Several health conditions can affect the Eustachian tube and cause problems with pressure regulation. For example, allergies, sinus infections, or other respiratory infections can cause swelling or blockages in the tube, making it more difficult for air to pass through. In some cases, a small tube (known as a “ventilation tube” or “PE tube”) may be inserted into the eardrum to help equalize pressure and prevent problems like ear infections or hearing loss. Overall, maintaining good ear health and seeking prompt treatment for any ear or respiratory problems can help to keep the Eustachian tube functioning properly.
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