dorsal tracheal commissure

例句：

1. 1. The dorsal trachea is responsible for the exchange of gases between the lungs andthe bloodstream.
   背侧气管负责肺部和血液之间气体的交换。
2. 2.In some species, the ventral trachea is used to transport food from the mouth to the stomach.
   在一些物种中，腹侧气管用于将食物从嘴输送到胃。
3. 3.The dorsal trachea is often thicker than the ventral trachea due to its role in maintaining the integrity of the respiratory system.
   由于其维护呼吸系统完整性的作用，背侧气管通常比腹侧气管更粗。