Musculus bronchoesophageus

例句：

1. 1. The muscular structure of the lungs is essential for breathing.
   肺部的肌肉结构对于呼吸至关重要。
2. 2. The doctor performed a surgery to repair the damaged muscular tissue in the patient's chest.
   医生为患者胸部受损的肌肉组织进行了手术修复。
3. 3. Muscles are responsible for contracting and expanding the lungs during breathing.
   肌肉负责在呼吸过程中收缩和扩张肺叶。