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One of these muscles, the tensor veli palatini, also acts to open the Eustachian tube. This is why swallowing or yawning is successful in equalizing middle ear pressure. Contrary to popular belief, the jaw does not pinch the tubes shut when closed. The Eustachian tubes are not located close enough to the mandible to be pinched off.
Diver clearing ears Section of the human ear, the Eustachian tube is shown in colour. Ear clearing, clearing the ears or equalization is any of various maneuvers to equalize the pressure in the middle ear with the outside pressure, by letting air enter along the Eustachian tubes, as this does not always happen automatically when the pressure in the middle ear is lower than the outside pressure.
the larynx is closed, sealing off the lungs; the body of the tongue (or only the back of the tongue, if velar closure has been made) is gently moved upwards and backwards, in order to compress the air; further compression of the air follows from moving the closed glottis upwards (this is easily noticed in the elevation of the "Adam's Apple").
The Valsalva maneuver can also help to temporarily unblock or equalize the pressure in the middle ear. To do this, simply pinch your nostrils closed with one hand and blow air through your nose ...
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There are several ways to unclog your ears safely, depending on what is causing your discomfort. Here, experts explain options for relief.
In humans and other tetrapods, both the middle ear and the ear canal are normally filled with air. Unlike the air of the ear canal, however, the air of the middle ear is not in direct contact with the atmosphere outside the body; thus, a pressure difference can develop between the atmospheric pressure of the ear canal and the middle ear.
Middle ear barotrauma (MEBT), also known to underwater divers as ear squeeze and reverse ear squeeze, is an injury caused by a difference in pressure between the external ear canal and the middle ear. It is common in underwater divers and usually occurs when the diver does not equalise sufficiently during descent or, less commonly, on ascent.