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中耳内气体分子的数量与中耳容积之比决定整个中耳腔的压力。因此，中耳腔容积减小将会导致中耳腔压力的升高。鼓膜松弛或紧张部的内陷将减小中耳空间，进而引起中耳腔压力升高。中耳压力降低时可出现鼓膜内陷，后者使中耳的压力重新保持在接近大气压。该研究观察了鼓膜松弛部?
The ratio of the number of gas molecules in the middle ear to the volume in the middle ear determines the pressure in the entire middle ear cavity. Therefore, reducing the volume of the middle ear cavity will lead to an increase in the pressure in the middle ear cavity. Relaxation of the tympanic membrane or depression of the tensor will reduce the space in the middle ear, which in turn causes the pressure in the middle ear cavity to rise. Tympanic membrane collapse may occur when the pressure in the middle ear decreases, and the latter causes the pressure in the middle ear to be maintained at near atmospheric pressure again. The study observed tympanic membrane relaxation?