It is an acute inflammatory condition confined to supraglottic structures which include epiglottis, aryepiglottic folds and arytenoids.

急性炎是一种急症状态，主要累及喉部区的及其周围织（包括谷、杓状和杓状软骨等。

Strung between the thyroid and arytenoid cartilages, these two muscles form an elastic curtain that opens and shuts across the trachea, the tube that carries air through the throat.

这两块肌肉位于甲状软骨和杓状软骨之间，形成了一个弹性幕帘，在气管开合，而气管是空气通过喉咙的管道。